Merge pull request #1513 from ministryofjustice/MLPAB-2549-create-a-p…

…ull-through-cache-for-the-public-ecr-image-to-avoid-rate-limits-there

MLPAB-2549 create a pull through cache for the public ecr image to avoid rate limits there

.github/workflows/docker_job.yml

@@ -101,7 +101,7 @@ jobs:
         id: trivy_scan
         uses: aquasecurity/[email protected]
         env:
-          TRIVY_DB_REPOSITORY: public.ecr.aws/aquasecurity/trivy-db:2
+          TRIVY_DB_REPOSITORY: ${{ steps.login_ecr.outputs.registry }}/trivy-db-public-ecr/aquasecurity/trivy-db:2
         with:
           image-ref: ${{ matrix.ecr_repository }}:${{ inputs.tag }}
           severity: 'HIGH,CRITICAL'