add php8 support

Author: Koldo Picaza

composer.json

@@ -13,16 +13,16 @@
         }
     ],
     "require": {
-        "php": "^7.4.3",
+        "php": "^7.4|^8.0",
         "doctrine/dbal": "^2.10",
         "psr/container": "^1.0.0"
     },
     "require-dev": {
-        "phpro/grumphp": "~0.17 || ~1.0",
-        "phpstan/phpstan": "~0.11.19",
-        "phpunit/phpunit": "^8.0 || ^9.0",
+        "phpro/grumphp": "^1.3.0",
+        "phpstan/phpstan": "^0.12",
+        "phpunit/phpunit": "^9.0",
         "squizlabs/php_codesniffer": "^3.4",
-        "symfony/var-dumper": "^4.2 || ^5.0"
+        "symfony/var-dumper": "^5.0"
     },
     "autoload": {
         "psr-4": {

phpstan.neon.dist

@@ -0,0 +1,6 @@
+parameters:
+  ignoreErrors:
+    -
+      message: '~Unable to resolve the template type T in call to method static method Doctrine\\DBAL\\DriverManager::getConnection\(\)~'
+      paths:
+        - %currentWorkingDirectory%/src/Container/DBALConnectionFactory.php