fix: warn if Terragrunt dependency is outside project.

[i4ki]

What this PR does / why we need it:

Fix panic in the case of a Terragrunt module references a dependency outside of the Terramate project.
This changed adds a warning for such cases because this is not supported in Terramate at the moment.

Which issue(s) this PR fixes:

Fixes #1979

Special notes for your reviewer:

Does this PR introduce a user-facing change?

yes, fixes a panic in the Terragrunt integration.

[github-actions]

2024/11/29 14:16:51 Terraform detected version: 1.9.8
toolsetPath: /tmp/cmd-terramate-test-1751228573
=== RUN   TestInteropCloudSyncPreview
=== RUN   TestInteropCloudSyncPreview/preview:_basic-drift
    interoperability_test.go:46: using GITHUB_EVENT_FILE=/home/runner/work/_temp/_github_workflow/event.json
=== RUN   TestInteropCloudSyncPreview/preview:_basic-drift-uppercase-id
    interoperability_test.go:46: using GITHUB_EVENT_FILE=/home/runner/work/_temp/_github_workflow/event.json
--- PASS: TestInteropCloudSyncPreview (11.52s)
    --- PASS: TestInteropCloudSyncPreview/preview:_basic-drift (6.02s)
    --- PASS: TestInteropCloudSyncPreview/preview:_basic-drift-uppercase-id (5.51s)
=== RUN   TestInteropSyncDeployment
=== RUN   TestInteropSyncDeployment/deployment:_empty
=== RUN   TestInteropSyncDeployment/deployment:_empty-uppercase-id
--- PASS: TestInteropSyncDeployment (36.74s)
    --- PASS: TestInteropSyncDeployment/deployment:_empty (18.88s)
    --- PASS: TestInteropSyncDeployment/deployment:_empty-uppercase-id (17.86s)
=== RUN   TestInteropDrift
=== RUN   TestInteropDrift/drift:_basic-drift
=== RUN   TestInteropDrift/drift:_basic-drift-uppercase-id
--- PASS: TestInteropDrift (59.31s)
    --- PASS: TestInteropDrift/drift:_basic-drift (29.37s)
    --- PASS: TestInteropDrift/drift:_basic-drift-uppercase-id (29.95s)
PASS
ok  	github.com/terramate-io/terramate/e2etests/cloud/interop	167.555s

[github-actions]

Preview of ubuntu-focal/go1.21 tests in 472146b

🔍 View Details on Terramate Cloud

.
cmd/terramate/cli
project
tg
e2etests/core

[github-actions]

Preview of macos-ventura/go1.21 tests in 472146b

🔍 View Details on Terramate Cloud

.
cmd/terramate/cli
project
tg
e2etests/core

[github-actions]

metric: time/op
ChangeDetection-4: old 4.00ms ± 4%: new 4.01ms ± 5%: delta: 0.00%
ChangeDetectionTFAndTG-4: old 13.0ms ± 4%: new 13.0ms ± 4%: delta: 0.00%
CloudReadLines-4: old 1.00ms ± 3%: new 1.00ms ± 5%: delta: 0.00%
CloudReadLine-4: old 7.42ms ± 3%: new 7.36ms ± 1%: delta: -0.86%
ListFiles-4: old 86.6µs ± 1%: new 87.0µs ± 2%: delta: 0.00%
Generate-4: old 1.55s ± 3%: new 1.55s ± 3%: delta: 0.00%
GenerateRegex-4: old 1.05s ± 3%: new 1.07s ± 4%: delta: 2.04%
TokensForExpressionComplex-4: old 1.25ms ± 0%: new 1.26ms ± 1%: delta: 1.06%
TokensForExpressionPlainStringNoNewline-4: old 790ns ± 1%: new 876ns ± 1%: delta: 10.86%
TokensForExpressionStringWith100Newlines-4: old 23.8µs ± 1%: new 24.2µs ± 2%: delta: 1.81%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 1.45ms ± 0%: new 1.45ms ± 0%: delta: 0.00%
TokensForExpression-4: old 1.26ms ± 1%: new 1.27ms ± 1%: delta: 0.89%
PartialEvalComplex-4: old 540µs ± 1%: new 540µs ± 1%: delta: 0.00%
PartialEvalSmallString-4: old 3.89µs ± 1%: new 3.89µs ± 1%: delta: 0.00%
PartialEvalHugeString-4: old 1.91ms ± 1%: new 1.93ms ± 1%: delta: 1.14%
PartialEvalHugeInterpolatedString-4: old 4.89ms ± 1%: new 4.91ms ± 2%: delta: 0.00%
PartialEvalObject-4: old 26.5µs ± 1%: new 26.7µs ± 1%: delta: 0.78%
TmAllTrueLiteralList-4: old 617µs ± 0%: new 616µs ± 1%: delta: 0.00%
TmAllTrueFuncall-4: old 20.2µs ± 1%: new 20.4µs ± 1%: delta: 0.77%
TmAnyTrueLiteralList-4: old 4.84ms ± 0%: new 4.87ms ± 1%: delta: 0.52%
TmAnyTrueFuncall-4: old 20.6µs ± 1%: new 20.6µs ± 0%: delta: 0.00%
TmTernary-4: old 2.52µs ± 0%: new 2.52µs ± 0%: delta: 0.00%
TmTryUnknownFunc-4: old 2.29µs ± 2%: new 2.28µs ± 0%: delta: -0.41%
TmTryUnknownVariable-4: old 2.18µs ± 1%: new 2.18µs ± 1%: delta: 0.20%
TmTryUnknownObjectKey-4: old 2.50µs ± 1%: new 2.49µs ± 0%: delta: -0.50%
metric: alloc/op
ChangeDetection-4: old 353kB ± 0%: new 356kB ± 0%: delta: 0.69%
ChangeDetectionTFAndTG-4: old 4.80MB ± 0%: new 4.81MB ± 0%: delta: 0.07%
CloudReadLines-4: old 3.12MB ± 0%: new 3.12MB ± 0%: delta: -0.00%
CloudReadLine-4: old 3.37MB ± 0%: new 3.37MB ± 0%: delta: 0.00%
ListFiles-4: old 27.6kB ± 0%: new 27.6kB ± 0%: delta: 0.00%
Generate-4: old 2.24GB ± 0%: new 2.24GB ± 0%: delta: 0.00%
GenerateRegex-4: old 926MB ± 0%: new 926MB ± 0%: delta: 0.00%
TokensForExpressionComplex-4: old 394kB ± 0%: new 394kB ± 0%: delta: 0.00%
TokensForExpressionPlainStringNoNewline-4: old 512B ± 0%: new 512B ± 0%: delta: 0.00%
TokensForExpressionStringWith100Newlines-4: old 12.5kB ± 0%: new 12.5kB ± 0%: delta: 0.00%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 395kB ± 0%: new 395kB ± 0%: delta: 0.00%
TokensForExpression-4: old 394kB ± 0%: new 395kB ± 0%: delta: 0.00%
PartialEvalComplex-4: old 361kB ± 0%: new 361kB ± 0%: delta: 0.00%
PartialEvalSmallString-4: old 1.95kB ± 0%: new 1.95kB ± 0%: delta: 0.00%
PartialEvalHugeString-4: old 196kB ± 0%: new 196kB ± 0%: delta: 0.00%
PartialEvalHugeInterpolatedString-4: old 4.31MB ± 0%: new 4.31MB ± 0%: delta: 0.00%
PartialEvalObject-4: old 19.4kB ± 0%: new 19.4kB ± 0%: delta: 0.00%
TmAllTrueLiteralList-4: old 321kB ± 0%: new 321kB ± 0%: delta: 0.00%
TmAllTrueFuncall-4: old 10.6kB ± 0%: new 10.6kB ± 0%: delta: 0.00%
TmAnyTrueLiteralList-4: old 2.09MB ± 0%: new 2.09MB ± 0%: delta: 0.00%
TmAnyTrueFuncall-4: old 10.7kB ± 0%: new 10.7kB ± 0%: delta: 0.00%
TmTernary-4: old 1.18kB ± 0%: new 1.18kB ± 0%: delta: 0.00%
TmTryUnknownFunc-4: old 784B ± 0%: new 784B ± 0%: delta: 0.00%
TmTryUnknownVariable-4: old 768B ± 0%: new 768B ± 0%: delta: 0.00%
TmTryUnknownObjectKey-4: old 952B ± 0%: new 952B ± 0%: delta: 0.00%
metric: allocs/op
ChangeDetection-4: old 2.39k ± 0%: new 2.45k ± 0%: delta: 2.45%
ChangeDetectionTFAndTG-4: old 33.6k ± 0%: new 33.7k ± 0%: delta: 0.25%
CloudReadLines-4: old 5.54k ± 0%: new 5.54k ± 0%: delta: 0.00%
CloudReadLine-4: old 60.0k ± 0%: new 60.0k ± 0%: delta: 0.00%
ListFiles-4: old 335 ± 0%: new 335 ± 0%: delta: 0.00%
Generate-4: old 25.7M ± 0%: new 25.7M ± 0%: delta: 0.01%
GenerateRegex-4: old 18.4M ± 0%: new 18.4M ± 0%: delta: 0.00%
TokensForExpressionComplex-4: old 4.83k ± 0%: new 4.83k ± 0%: delta: 0.00%
TokensForExpressionPlainStringNoNewline-4: old 20.0 ± 0%: new 20.0 ± 0%: delta: 0.00%
TokensForExpressionStringWith100Newlines-4: old 227 ± 0%: new 227 ± 0%: delta: 0.00%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 3.19k ± 0%: new 3.19k ± 0%: delta: 0.00%
TokensForExpression-4: old 4.83k ± 0%: new 4.83k ± 0%: delta: 0.00%
PartialEvalComplex-4: old 3.78k ± 0%: new 3.78k ± 0%: delta: 0.00%
PartialEvalSmallString-4: old 26.0 ± 0%: new 26.0 ± 0%: delta: 0.00%
PartialEvalHugeString-4: old 38.0 ± 0%: new 38.0 ± 0%: delta: 0.00%
PartialEvalHugeInterpolatedString-4: old 26.1k ± 0%: new 26.1k ± 0%: delta: 0.00%
PartialEvalObject-4: old 183 ± 0%: new 183 ± 0%: delta: 0.00%
TmAllTrueLiteralList-4: old 5.94k ± 0%: new 5.94k ± 0%: delta: 0.00%
TmAllTrueFuncall-4: old 275 ± 0%: new 275 ± 0%: delta: 0.00%
TmAnyTrueLiteralList-4: old 59.6k ± 0%: new 59.6k ± 0%: delta: 0.00%
TmAnyTrueFuncall-4: old 277 ± 0%: new 277 ± 0%: delta: 0.00%
TmTernary-4: old 27.0 ± 0%: new 27.0 ± 0%: delta: 0.00%
TmTryUnknownFunc-4: old 21.0 ± 0%: new 21.0 ± 0%: delta: 0.00%
TmTryUnknownVariable-4: old 20.0 ± 0%: new 20.0 ± 0%: delta: 0.00%
TmTryUnknownObjectKey-4: old 23.0 ± 0%: new 23.0 ± 0%: delta: 0.00%