Add PHP 8 compatibility and Use github actions as test CI (#208)

* Add PHP 8 compatibility and Use github actions as test CI

Author: alexander-schranz

.github/workflows/test-application.yaml

@@ -0,0 +1,60 @@
+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_DEPRECATIONS_HELPER: ${{ matrix.symfony-deprecation-helper }}
+            SYMFONY_REQUIRE: ${{ matrix.symfony-version }}
+
+        strategy:
+            fail-fast: false
+            matrix:
+                symfony-version:
+                    - '*'
+                include:
+                    - php-version: '7.1'
+                      dependencies: 'lowest'
+                      symfony-version: '^3.4'
+                      symfony-deprecation-helper: 'weak'
+
+                    - php-version: '7.2'
+                    - php-version: '7.3'
+                    - 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 }}
+                  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

.travis.yml

@@ -9,7 +9,7 @@
         }
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "doctrine/data-fixtures": "^1.2",
         "symfony/browser-kit": "^3.4.26 || ^4.3.8 || ^5.0"
     },
@@ -24,7 +24,7 @@
         "symfony/monolog-bundle": "^3.5",
         "symfony/security-bundle": "^3.4.26 || ^4.3.8 || ^5.0",
         "symfony/twig-bundle": "^3.4.26 || ^4.3.8 || ^5.0",
-        "symfony/phpunit-bridge": "^4.2.2"
+        "symfony/phpunit-bridge": "^5.2.1"
     },
     "autoload": {
         "psr-4": {