Add test CI workflow

.forgejo/workflows/test.yml

@@ -0,0 +1,23 @@
+name: Test pipeline
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Show files
+        run: |
+          pwd
+          ls -la
+          find . -maxdepth 2 -type f | sort
+
+      - name: Check Docker Compose config
+        run: |
+          docker compose config