Add PHP 8.1 support to GitHub workflow actions

Author: devanych

.github/workflows/build.yml

@@ -37,8 +37,9 @@ jobs:
  - windows-latest
 
  php:
- - "7.4"
- - "8.0"
+ - 7.4
+ - 8.0
+ - 8.1
 
  steps:
  - name: Checkout

.github/workflows/mutation.yml

@@ -31,7 +31,7 @@ jobs:
  - ubuntu-latest
 
  php:
- - "7.4"
+ - 8.1
 
  steps:
  - name: Checkout

.github/workflows/static.yml

@@ -33,8 +33,9 @@ jobs:
  - ubuntu-latest
 
  php:
- - "7.4"
- - "8.0"
+ - 7.4
+ - 8.0
+ - 8.1
 
  steps:
  - name: Checkout

composer.json

@@ -14,15 +14,16 @@
  "issues": "https://github.com/yiisoft/strings/issues",
  "forum": "https://www.yiiframework.com/forum/",
  "wiki": "https://www.yiiframework.com/wiki/",
- "irc": "irc://irc.freenode.net/yii"
+ "irc": "irc://irc.freenode.net/yii",
+ "chat": "https://t.me/yii3en"
  },
  "require": {
  "php": "^7.4|^8.0",
  "ext-mbstring": "*"
  },
  "require-dev": {
  "phpunit/phpunit": "^9.5",
- "roave/infection-static-analysis-plugin": "^1.15",
+ "roave/infection-static-analysis-plugin": "^1.16",
  "spatie/phpunit-watcher": "^1.23",
  "vimeo/psalm": "^4.18"
  },