github-actions(deps): Bump aquasecurity/trivy-action

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.24.0 to 0.28.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.24.0...915b19b)

---
updated-dependencies:
- dependency-name: aquasecurity/trivy-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/scan-image.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Scan Image
         id: scan_image
-        uses: aquasecurity/trivy-action@6e7b7d1fd3e4fef0c5fa8cce1229c54b2c9bd0d8 # v0.24.0
+        uses: aquasecurity/trivy-action@915b19bbe73b92a6cf82a1bc12b087c9a19a5fe2 # v0.28.0
         with:
           image-ref: grafana-api-key-rotator
           exit-code: 1
@@ -49,7 +49,7 @@ jobs:
       - name: Scan Image (On SARIF Scan Failure)
         if: failure() && steps.scan_image.outcome == 'failure'
         id: scan_image_on_failure
-        uses: aquasecurity/trivy-action@5681af892cd0f4997658e2bacc62bd0a894cf564 # v0.27.0
+        uses: aquasecurity/trivy-action@915b19bbe73b92a6cf82a1bc12b087c9a19a5fe2 # v0.28.0
         env:
           TRIVY_DB_REPOSITORY: public.ecr.aws/aquasecurity/trivy-db:2
           TRIVY_JAVA_DB_REPOSITORY: public.ecr.aws/aquasecurity/trivy-java-db:1