ci: add workflow for testing action

Author: stempler

.github/workflows/check.yml

@@ -0,0 +1,30 @@
+name: Test gha-trivy Action
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Create dummy file to scan
+        run: |
+          echo 'FROM alpine' > Dockerfile
+          echo 'RUN apk add --no-cache curl' >> Dockerfile
+
+      - name: Build test image
+        run: |
+          docker build -t test-gha-trivy:latest .
+
+      - name: Run gha-trivy action
+        uses: ./
+        with:
+          image-ref: test-gha-trivy:latest
+          create-test-report: 'true'
+          create-summary: 'true'

.wetf-repo.yml

@@ -6,3 +6,6 @@ presets:
   - github-actions
   - renovate-config
   - workflows-default
+
+required_checks:
+  - check