Bump buildpacks/github-actions from 5.7.1 to 5.7.4 (#50)

Bumps [buildpacks/github-actions](https://github.com/buildpacks/github-actions) from 5.7.1 to 5.7.4.
- [Release notes](https://github.com/buildpacks/github-actions/releases)
- [Commits](buildpacks/github-actions@v5.7.1...v5.7.4)

---
updated-dependencies:
- dependency-name: buildpacks/github-actions
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/rundoc-ci.yml

@@ -16,7 +16,7 @@ jobs:
           ruby-version: "3.3"
           bundler-cache: true # do run 'bundle install' and cache
           working-directory: .rundoc-workspace
-      - uses: buildpacks/github-actions/[email protected].1
+      - uses: buildpacks/github-actions/[email protected].4
 
       # [CONFIG] add different languages set up here
       - run: bundle exec rundoc ../docs/src/ruby/ruby_tutorial.md --on-success-dir ../docs/ruby --on-failure-dir ../docs/fail --force

.github/workflows/rundoc-pr.yml

@@ -26,7 +26,7 @@ jobs:
           ruby-version: "3.3"
           bundler-cache: true # do run 'bundle install' and cache
           working-directory: .rundoc-workspace
-      - uses: buildpacks/github-actions/[email protected].1
+      - uses: buildpacks/github-actions/[email protected].4
 
       # [CONFIG] add different languages set up here
       - run: bundle exec rundoc ../docs/src/ruby/ruby_tutorial.md --on-success-dir ../docs/ruby --on-failure-dir ../docs/fail --force