ci: add Super-Linter (#323)

.github/workflows/tests.yaml

@@ -0,0 +1,60 @@
+---
+name: Tests
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php-versions: ['8.2', '8.3']
+    steps:
+      -
+        uses: actions/checkout@v4
+      -
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+          cache-dependency-path: |
+            go.sum 
+            caddy/go.sum
+      -
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          ini-file: development
+          coverage: none
+          tools: none
+        env:
+          phpts: ts
+      -
+        name: Set CGO flags
+        run: |
+          echo "CGO_CFLAGS=$(php-config --includes)" >> "$GITHUB_ENV"
+      -
+        name: Build
+        run: go build
+        env:
+          GOEXPERIMENT: cgocheck2
+      -
+        name: Build testcli binary
+        working-directory: internal/testcli/
+        run: go build
+      -
+        name: Run library tests
+        run: go test -race -v ./...
+      -
+        name: Run Caddy module tests
+        working-directory: caddy/
+        run: go test -race -v ./...
+      -
+        name: Lint Go code
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest