build(deps): bump go.einride.tech/sage from 0.354.0 to 0.356.1 in /.sage

Bumps [go.einride.tech/sage](https://github.com/einride/sage) from 0.354.0 to 0.356.1.
- [Release notes](https://github.com/einride/sage/releases)
- [Commits](einride/sage@v0.354.0...v0.356.1)

---
updated-dependencies:
- dependency-name: go.einride.tech/sage
  dependency-version: 0.356.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.sage/go.mod

@@ -4,4 +4,4 @@ go 1.22
 
 toolchain go1.24.1
 
-require go.einride.tech/sage v0.354.0
+require go.einride.tech/sage v0.356.1

.sage/go.sum

@@ -1,2 +1,2 @@
-go.einride.tech/sage v0.354.0 h1:K+1uiIaiubbwJOWOzyEKjj9mA8HsTuhqNlo0xvsft7c=
-go.einride.tech/sage v0.354.0/go.mod h1:sy9YuK//XVwEZ2wD3f19xVSKEtN8CYtgtBZGpzC3p80=
+go.einride.tech/sage v0.356.1 h1:XQF42NljaW/xwgi0ybfedR5vL6R17YiBTUoG15wpWCw=
+go.einride.tech/sage v0.356.1/go.mod h1:sy9YuK//XVwEZ2wD3f19xVSKEtN8CYtgtBZGpzC3p80=

Makefile

@@ -37,7 +37,7 @@ sage:
 
 .PHONY: update-sage
 update-sage: $(go)
-	@cd .sage && $(go) get -d go.einride.tech/sage@latest && $(go) mod tidy && $(go) run .
+	@cd .sage && $(go) get go.einride.tech/sage@latest && $(go) mod tidy && $(go) run .
 
 .PHONY: clean-sage
 clean-sage: