Use github actions as test CI (#459)

* Use github actions as test CI

Author: alexander-schranz

.github/workflows/test-application.yaml

@@ -0,0 +1,55 @@
+name: Test application
+
+on:
+    pull_request:
+    push:
+        branches:
+            - 'master'
+            - '[0-9]+.x'
+            - '[0-9]+.[0-9]+'
+            - '[0-9]+.[0-9]+.x'
+
+jobs:
+    test:
+        name: 'PHP ${{ matrix.php-version }}, Symfony ${{ matrix.symfony-version }} ${{ matrix.dependencies}}'
+        runs-on: ubuntu-20.04
+        env:
+            SYMFONY_PHPUNIT_VERSION: 8
+            SYMFONY_DEPRECATIONS_HELPER: weak
+            SYMFONY_REQUIRE: ${{ matrix.symfony-version }}
+
+        strategy:
+            fail-fast: false
+            matrix:
+                include:
+                    - php-version: '7.2'
+                      dependencies: 'lowest'
+                    - php-version: '7.2'
+                    - php-version: '7.4'
+                      symfony-version: '^4.4'
+                    - php-version: '7.4'
+                      symfony-version: '5.0.*'
+                    - php-version: '8.0'
+
+        steps:
+            - name: Checkout project
+              uses: actions/checkout@v2
+
+            - name: Install and configure PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: ${{ matrix.php-version }}
+                  extensions: 'pdo, pdo_sqlite'
+                  tools: 'composer:v2'
+
+            - name: Install Symfony Flex
+              run: composer global require --no-progress --no-scripts --no-plugins symfony/flex
+
+            - name: Install dependencies with Composer
+              uses: ramsey/composer-install@v1
+              with:
+                  dependency-versions: ${{ matrix.dependencies }}
+                  composer-options: --prefer-dist
+
+            - name: Execute test cases
+              run: make test