chore(actions): test failing due to invalid version

Author: sudkumar

composer.json

@@ -30,7 +30,7 @@
     },
     "require-dev": {
         "orchestra/testbench": "~3.8|^4.0|^5.0",
-        "phpunit/phpunit": "^5.3|^6.0|^8.0"
+        "phpunit/phpunit": "^5.3|^6.0|^7.0|^8.0"
     },
     "config": {
         "optimize-autoloader": true,