Add some checks and automatically create distribution ZIP archive on release

Author: mlocati

.gitattributes

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+/.* export-ignore

.github/workflows/checks.yml

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+name: Checks
+
+on:
+  push:
+    branches:
+      - main
+    tags-ignore:
+      - "**"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+
+  check-syntax:
+    name: PHP ${{ matrix.php-version }} Syntax
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-version:
+          - "5.5"
+          - "8.4"
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          extensions: opcache
+          coverage: none
+          tools: none
+      -
+        name: Check syntax
+        uses: mlocati/check-php-syntax@v1
+        with:
+          fail-on-warnings: true
+
+  check-install:
+    name: Install on Concrete ${{ matrix.ccm-version }}
+    runs-on: ubuntu-latest
+    container: ghcr.io/concrete5-community/docker5:${{ matrix.ccm-version }}
+    strategy:
+      matrix:
+        ccm-version:
+          - 8.5.2
+          - "9.0"
+          - "9.1"
+          - "9.2"
+          - latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Check composer.json
+        run: sudo -u www-data composer --ansi --no-interaction validate --strict -- "$GITHUB_WORKSPACE/composer.json" 
+      -
+        name: Prepare package
+        run: ln -s "$GITHUB_WORKSPACE" /app/packages/empty_anchor
+      -
+        name: Start services
+        run: ccm-service start db
+      -
+        name: Core info
+        run: sudo -u www-data /app/concrete/bin/concrete5 --ansi --no-interaction c5:info
+      -
+        name: Install package
+        run: sudo -u www-data /app/concrete/bin/concrete5 --ansi --no-interaction c5:package:install empty_anchor

.github/workflows/create-release-attachment.yml

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+name: Attach ZIP to GitHub Release
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  attach-zip:
+    name: Attach ZIP to release
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.4'
+          tools: composer:v2
+          coverage: none
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Create and attach ZIP
+        uses: concrete5-community/gh-package-release-attach@main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          remove-files: |
+            composer.json
+            composer.lock