feat: Snyk container workflow configuration (#79)

* Update Snyk container workflow configuration

* Update Docker image name in Snyk workflow

* Update Snyk action to use latest master version

.github/workflows/snyk-container.yml

@@ -0,0 +1,36 @@
+name: Snyk Container
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: '39 13 * * 4'
+
+permissions:
+  contents: read
+
+jobs:
+  snyk:
+    permissions:
+      contents: read
+      security-events: write
+      actions: read
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build a Docker image
+      run: docker build -t burnett01/rsync-deployments .
+    - name: Run Snyk to check Docker image for vulnerabilities
+      continue-on-error: true
+      uses: snyk/actions/docker@master
+      env:
+        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+      with:
+        image: burnett01/rsync-deployments
+        args: --file=Dockerfile
+    - name: Upload result to GitHub Code Scanning
+      uses: github/codeql-action/upload-sarif@v3
+      with:
+        sarif_file: snyk.sarif