CLOUD-727: Bump aquasecurity/trivy-action from 0.19.0 to 0.21.0 (#1563)

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.19.0 to 0.21.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.19.0...0.21.0)

---
updated-dependencies:
- dependency-name: aquasecurity/trivy-action
  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>

Author: dependabot[bot]

.github/workflows/scan.yml

@@ -30,7 +30,7 @@ jobs:
           export DOCKER_DEFAULT_PLATFORM='linux/arm64'
           ./e2e-tests/build
       - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/trivy-action@0.19.0
+        uses: aquasecurity/trivy-action@0.21.0
         with:
           image-ref: '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}-arm64'
           format: 'table'
@@ -48,7 +48,7 @@ jobs:
           ./e2e-tests/build
 
       - name: Run Trivy vulnerability scanner image (linux/amd64)
-        uses: aquasecurity/trivy-action@0.19.0
+        uses: aquasecurity/trivy-action@0.21.0
         with:
           image-ref: '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}-amd64'
           format: 'table'