PHP 8 compatibility (#30)

Author: NicoHaase

.github/workflows/tests.yml

@@ -18,11 +18,12 @@ jobs:
                     - "7.2"
                     - "7.3"
                     - "7.4"
+                    - "8.0"
                 symfony-version:
                     - "3.4.x"
                     - "4.4.x"
-                    - "5.0.x"
                     - "5.1.x"
+                    - "5.2.x"
 
         steps:
             - name: "Checkout"

composer.json

@@ -9,14 +9,14 @@
   },
   "keywords": ["cron", "task", "scheduler", "symfony", "bundle"],
   "require": {
-    "php": "^7.2",
-    "symfony/framework-bundle": "^3.4|^4.4|^5.0",
-    "symfony/console": "^3.4|^4.4|^5.0",
+    "php": "^7.2|^8.0",
+    "symfony/framework-bundle": "^3.4|^4.4|^5.1",
+    "symfony/console": "^3.4|^4.4|^5.1",
     "dragonmantank/cron-expression": "^2.3|^3.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^8.5",
-    "symfony/phpunit-bridge": "^5.0",
+    "symfony/phpunit-bridge": "^5.1",
     "monolog/monolog": "^1.25"
   },
   "license": "MIT",