fix mockery version

Author: andrew-nuwber

composer.json

@@ -22,7 +22,7 @@
   "require-dev": {
     "phpunit/phpunit": "^8.0 || ^9.0",
     "php-http/guzzle6-adapter": "^1.0",
-    "mockery/mockery": "^1.4",
+    "mockery/mockery": "^1.2",
     "nyholm/nsa": "^1.0",
     "php-coveralls/php-coveralls": "^2.4",
     "phpunit/phpcov": "^8.0",