Bump aquasecurity/trivy-action from 0.7.1 to 0.8.0 (#288)

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.7.1 to 0.8.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.7.1...0.8.0)

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -202,7 +202,7 @@ jobs:
           no-cache: ${{ github.event_name != 'pull_request' }}
 
       - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/trivy-action@0.7.1
+        uses: aquasecurity/trivy-action@0.8.0
         continue-on-error: true
         with:
           image-ref: ghcr.io/nginxinc/nginx-kubernetes-gateway:${{ steps.meta.outputs.version }}