Bump rspec from 3.12.0 to 3.13.0 (#71)

Bumps [rspec](https://github.com/rspec/rspec-metagem) from 3.12.0 to 3.13.0.
- [Commits](rspec/rspec-metagem@v3.12.0...v3.13.0)

---
updated-dependencies:
- dependency-name: rspec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -3,21 +3,21 @@ GEM
  specs:
  bosh-template (2.4.0)
  semi_semantic (~> 1.2.0)
- diff-lcs (1.5.0)
+ diff-lcs (1.5.1)
  rake (13.1.0)
- rspec (3.12.0)
- rspec-core (~> 3.12.0)
- rspec-expectations (~> 3.12.0)
- rspec-mocks (~> 3.12.0)
- rspec-core (3.12.0)
- rspec-support (~> 3.12.0)
- rspec-expectations (3.12.2)
+ rspec (3.13.0)
+ rspec-core (~> 3.13.0)
+ rspec-expectations (~> 3.13.0)
+ rspec-mocks (~> 3.13.0)
+ rspec-core (3.13.0)
+ rspec-support (~> 3.13.0)
+ rspec-expectations (3.13.0)
  diff-lcs (>= 1.2.0, < 2.0)
- rspec-support (~> 3.12.0)
- rspec-mocks (3.12.3)
+ rspec-support (~> 3.13.0)
+ rspec-mocks (3.13.0)
  diff-lcs (>= 1.2.0, < 2.0)
- rspec-support (~> 3.12.0)
- rspec-support (3.12.0)
+ rspec-support (~> 3.13.0)
+ rspec-support (3.13.0)
  semantic (1.6.1)
  semi_semantic (1.2.0)