Bump buildpacks/github-actions from 5.4.0 to 5.5.0 (#602)

Bumps [buildpacks/github-actions](https://github.com/buildpacks/github-actions) from 5.4.0 to 5.5.0.
- [Release notes](https://github.com/buildpacks/github-actions/releases)
- [Commits](buildpacks/github-actions@v5.4.0...v5.5.0)

---
updated-dependencies:
- dependency-name: buildpacks/github-actions
  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>

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2
       - name: Install Pack CLI
-        uses: buildpacks/github-actions/setup-pack@v5.4.0
+        uses: buildpacks/github-actions/setup-pack@v5.5.0
       - name: Run integration tests
         working-directory: ${{ matrix.buildpack-directory }}
         # Runs only tests annotated with the `ignore` attribute (which in this repo, are the integration tests).