Bump aquasecurity/trivy-action in the actions group

Bumps the actions group with 1 update: [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action).


Updates `aquasecurity/trivy-action` from 0.27.0 to 0.28.0
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](5681af892c...915b19bbe7)

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

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

.github/workflows/vulnerability-scans.yaml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Scan image with AquaSec/Trivy
         id: scan
-        uses: aquasecurity/trivy-action@5681af892cd0f4997658e2bacc62bd0a894cf564 # v0.27.0
+        uses: aquasecurity/trivy-action@915b19bbe73b92a6cf82a1bc12b087c9a19a5fe2 # v0.28.0
         with:
           image-ref: registry.k8s.io/ingress-nginx/controller:${{ matrix.versions }}
           format: 'sarif'