Update GitHub build files with new syntax and PHP versions

.github/workflows/php.yml

@@ -1,38 +1,38 @@
 name: Github Build
-on: [push, pull_request]
+on: [ push, pull_request ]
 jobs:
-    build:
-        runs-on: ubuntu-latest
-        strategy:
-            fail-fast: false
-            matrix:
-                php: ['7.4', '7.3', '7.2', '8.0', '8.1', '8.2']
-        name: PHP ${{ matrix.php }}
-        steps:
-            - uses: actions/checkout@v1
-            - name: Install PHP
-              uses: shivammathur/setup-php@v2
-              with:
-                  php-version: ${{ matrix.php }}
-                  coverage: xdebug
-            - name: Report PHP version
-              run: php -v
-            - name: Validate composer.json and composer.lock
-              run: composer validate
-            - name: Get Composer Cache Directory
-              id: composer-cache
-              run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-            - name: Cache dependencies
-              uses: actions/cache@v1
-              with:
-                  path: ${{ steps.composer-cache.outputs.dir }}
-                  key: ${{ matrix.php }}-composer-${{ hashFiles('**/composer.lock') }}
-                  restore-keys: ${{ matrix.php }}-composer-
-            - name: Install dependencies
-              run: composer install --prefer-dist --no-progress --no-suggest
-            - name: Run PHPStan
-              run: composer phpstan
-            - name: Run PHP-CS
-              run: composer check-style
-            - name: Run test suite
-              run: vendor/bin/phpunit
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [ '7.4', '7.3', '7.2', '8.0', '8.1', '8.2', '8.3', '8.4']
+    name: PHP ${{ matrix.php }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: xdebug
+      - name: Report PHP version
+        run: php -v
+      - name: Validate composer.json and composer.lock
+        run: composer validate
+      - name: Get Composer Cache Directory
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ matrix.php }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ matrix.php }}-composer-
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+      - name: Run PHPStan
+        run: composer phpstan
+      - name: Run PHP-CS
+        run: composer check-style
+      - name: Run test suite
+        run: vendor/bin/phpunit