dev: revert PHPStan to v1.x

Author: justlevine

composer.json

@@ -23,7 +23,7 @@
 		"squizlabs/php_codesniffer": "3.10.3",
 		"wp-coding-standards/wpcs": "~3.1.0",
 		"phpcompatibility/phpcompatibility-wp": "~2.1.3",
-		"phpstan/phpstan": "^2.1.2",
+		"phpstan/phpstan": "~1.12.27",
 		"yoast/phpunit-polyfills": "^1.1.0"
 	},
 	"config": {

tests/phpstan/base.neon

@@ -5,6 +5,12 @@
 # https://phpstan.org/config-reference
 
 parameters:
+  # Cache is stored locally, so it's available for CI.
+  tmpDir: ../../.cache
+
+  # The Minimum PHP Version
+  phpVersion: 70224
+
   # What directories and files should be scanned.
   paths:
     - ../../src