Add support for php8.1 (#25)

Author: mhdcodes

.gitattributes

@@ -5,9 +5,13 @@
 /composer.lock          export-ignore
 /CODE_OF_CONDUCT.md     export-ignore
 /CONTRIBUTING.md        export-ignore
+/SECURITY.md            export-ignore
 /phpunit.xml.dist       export-ignore
 /docs                   export-ignore
 /tests                  export-ignore
 /.github                export-ignore
+/phpstan.neon           export-ignore
+/.editorconfig          export-ignore
+/.gitbook.yaml          export-ignore
 
 *.php diff=php

.github/workflows/php.yml

@@ -9,7 +9,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest]
-        php: [8.0, 7.4]
+        php: [8.1, 8.0, 7.4]
         stability: [prefer-stable]
 
     name: PHP${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}

.gitignore

@@ -9,3 +9,4 @@ testbench.yaml
 vendor
 .php-cs-fixer.cache
 .phpunit.cache
+composer.lock

SECURITY.md

@@ -5,7 +5,7 @@
 `paypal-checkout-sdk` Package requires PHP 7.4 or higher. If you are using an older version of php this package may not function correctly.
 
 | Version | Supported          |
-| ------- | ------------------ |
+|---------|--------------------|
 | 3.0.x   | :white_check_mark: |
 | 2.0.x   | :white_check_mark: |
 | < 2.0   | :x:                |

composer.json

@@ -17,10 +17,10 @@
         }
     ],
     "require": {
-        "php": "^7.4|^8.0",
+        "php": "^7.4|^8.0|^8.1",
         "ext-json": "*",
         "brick/money": "^0.5.2",
-        "phpjuice/paypal-http-client": "^1.0"
+        "phpjuice/paypal-http-client": "1.0.0"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3.4",
@@ -40,8 +40,8 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "scripts": {
-        "test": "vendor/bin/pest",
-        "analyse": "phpstan analyse src tests",
+        "test": "vendor/bin/pest --colors=always",
+        "analyse": "phpstan analyse --ansi --debug",
         "php-cs-fixer": [
             "php-cs-fixer fix src --rules=@PSR2",
             "php-cs-fixer fix tests --rules=@PSR2"