chore(docker): automatic updates + nightly security check (#7515)

Refs #7514

.github/workflows/docker-image-check.yml

@@ -0,0 +1,20 @@
+name: Security scan for docker image
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron:  '30 4 * * *'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: 'docker.io/swaggerapi/swagger-ui:unstable'
+          format: 'table'
+          exit-code: '1'
+          ignore-unfixed: true
+          vuln-type: 'os,library'
+          severity: 'CRITICAL,HIGH'