Remove Tests on PHP 8.0 and add notice about PHP Support

Author: LKaemmerling

.github/workflows/php.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: [ '8.0', '8.1', '8.2', '8.3' ]
+        php-versions: [ '8.1', '8.2', '8.3', '8.4']
     steps:
     - uses: actions/checkout@v2
     - name: Setup PHP

README.md

@@ -20,6 +20,9 @@ foreach ($hetznerClient->servers()->all() as $server) {
     echo 'ID: '.$server->id.' Name:'.$server->name.' Status: '.$server->status.PHP_EOL;
 }
 ```
+### PHP Support
+
+We test on all supported PHP Versions. The library can still work on older versions, however it is no longer actively tested.
 
 ### Old Releases: v1.x
 [Version 1.x](https://github.com/LKDevelopment/hetzner-cloud-php-sdk/tree/v1) is abandoned and will not receive any new updates or features. V2 was created with Backward Compatibility in mind. So it should work as a drop-in replacement. Therefor it does not give a "Migration to v2"-Guide. It should just work!

composer.json

@@ -9,10 +9,10 @@
     "cloud php library"
   ],
   "require": {
-    "php": "^7.1|^8.0",
+    "php": "^8.1",
     "ext-json": "*",
     "guzzlehttp/guzzle": "^6.3|^7.0",
-    "illuminate/collections": "^5.5|^v6.18|^7.0|^8.0|^11.0"
+    "illuminate/collections": "^5.5|^v6.18|^7.0|^8.0|^9.0|^10.0|^11.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^7.0|^8.5.5|^9.0",