Update CakePHP version constraint. (#5386)

v4.0.2 has some ORM optimizations which should provide noticeable gains.

frameworks/PHP/cakephp/composer.json

@@ -6,7 +6,7 @@
     "license": "MIT",
     "require": {
         "php": ">=7.2",
-        "cakephp/cakephp": "^4.0",
+        "cakephp/cakephp": "^4.0.2",
         "cakephp/plugin-installer": "^1.0"
     },
     "autoload": {