Bump buildpacks/github-actions from 5.8.3 to 5.8.8 (#905)

Bumps [buildpacks/github-actions](https://github.com/buildpacks/github-actions) from 5.8.3 to 5.8.8.
- [Release notes](https://github.com/buildpacks/github-actions/releases)
- [Commits](buildpacks/github-actions@v5.8.3...v5.8.8)

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

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

.github/workflows/ci.yml

@@ -62,7 +62,7 @@ jobs:
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2.7.7
       - name: Install Pack CLI
-        uses: buildpacks/github-actions/setup-pack@v5.8.3
+        uses: buildpacks/github-actions/setup-pack@v5.8.8
       - name: Run integration tests
         # Runs only tests annotated with the `ignore` attribute (which in this repo, are the integration tests).
         run: cargo test -- --ignored

libcnb-test/tests/integration_test.rs

@@ -273,15 +273,15 @@ pack command failed with exit code 1!
 
 ## stderr:
 
-ERROR: forbidden image name: parsing builder image invalid!: could not parse reference: invalid!
+ERROR: could not parse reference: invalid-builder!
 
 ## stdout:
 
 
 ")]
 fn unexpected_pack_failure() {
     TestRunner::default().build(
-        BuildConfig::new("invalid!", "tests/fixtures/empty").buildpacks(Vec::new()),
+        BuildConfig::new("invalid-builder!", "tests/fixtures/empty").buildpacks(Vec::new()),
         |_| {
             unreachable!("The test should panic prior to the TestContext being invoked.");
         },
@@ -314,14 +314,14 @@ fn unexpected_pack_success() {
 #[ignore = "integration test"]
 fn expected_pack_failure() {
     TestRunner::default().build(
-        BuildConfig::new("invalid!", "tests/fixtures/empty")
+        BuildConfig::new("invalid-builder!", "tests/fixtures/empty")
             .buildpacks(Vec::new())
             .expected_pack_result(PackResult::Failure),
         |context| {
             assert_empty!(context.pack_stdout);
             assert_contains!(
                 context.pack_stderr,
-                "ERROR: forbidden image name: parsing builder image invalid!"
+                "ERROR: could not parse reference: invalid-builder!"
             );
         },
     );