Enhancement: Add support for PHP 8.1

Author: Chris8934

.github/settings.yml

@@ -28,6 +28,8 @@ branches:
           - context: "Tests (7.4, lowest)"
           - context: "Tests (8.0, highest)"
           - context: "Tests (8.0, lowest)"
+          - context: "Tests (8.1, highest)"
+          - context: "Tests (8.1, lowest)"
         strict: false
       restrictions: null
 

.github/workflows/integrate.yaml

@@ -249,6 +249,7 @@ jobs:
           - "7.3"
           - "7.4"
           - "8.0"
+          - "8.1"
 
         dependencies:
           - "lowest"

composer.json

@@ -20,7 +20,7 @@
         }
     ],
     "require": {
-        "php": "~7.1.0 || ~7.2.0 || ~7.3.0 || ~7.4.0 || ~8.0.0"
+        "php": "~7.1.0 || ~7.2.0 || ~7.3.0 || ~7.4.0 || ~8.0.0 || ~8.1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.5 || ^8.0",