ci: use backup database location

.github/actions/build-docker-image/action.yml

@@ -158,7 +158,7 @@ runs:
  -v $(pwd)/.cache:/root/.cache \
  -v $(pwd):/workdir \
  -w /workdir \
- aquasec/trivy:0.56.1 image --format json --ignore-unfixed --pkg-types os --scanners vuln ${{ inputs.primaryTag }} --db-repository public.ecr.aws/aquasecurity/trivy-db:2 --output trivy.json
+ aquasec/trivy:0.56.1 image --format json --ignore-unfixed --pkg-types os --scanners vuln --db-repository ghcr.io/aquasecurity/trivy-db:2,public.ecr.aws/aquasecurity/trivy-db:2 ${{ inputs.primaryTag }} --output trivy.json
  sudo chmod a+r -R .cache
 
  - name: Calculate database hash