work flow fix

Author: amrshawky

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [7.3, 7.4, 8.0, 8.1]
+        php: [7.2, 7.3, 7.4, 8.0, 8.1]
         laravel: [6.*, 7.*, 8.*, 9.*]
         dependency-version: [prefer-lowest, prefer-stable]
 

composer.json

@@ -23,7 +23,7 @@
         "amrshawky/currency": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0"
+        "phpunit/phpunit": ">=8.5.23"
     },
     "autoload": {
         "psr-4": {