Fix test failures due Mockery and minimum stability install...

mockery/mockery#1071

Author: amcsi

composer.json

@@ -39,7 +39,7 @@
         "symfony/psr-http-message-bridge": "^1.1|^2.0"
     },
     "require-dev": {
-        "mockery/mockery": "^1.3",
+        "mockery/mockery": "^1.3.3",
         "orchestra/testbench": "^4.0|^5.0|^6.0",
         "phpunit/phpunit": "^8.0|^9.0"
     },