upgrade guzzle http to version 7 (#3)

* upgrade guzzlehttp to version 7

* update php workflow

Author: mhdcodes

.github/workflows/php.yml

@@ -14,6 +14,11 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: '7.4'
+
     - name: Validate composer.json and composer.lock
       run: composer validate
 

composer.json

@@ -18,9 +18,9 @@
         }
     },
     "require": {
-        "php": "^7.4",
+        "php": "^7.2",
         "guzzlehttp/psr7": "^1.6",
-        "guzzlehttp/guzzle": "^6.5"
+        "guzzlehttp/guzzle": "^7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.0",