Add instanceof ConstantArrayType to phpstan baseline

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: phpstan-bot

phpstan-baseline.neon

@@ -1581,6 +1581,12 @@ parameters:
 			count: 1
 			path: src/Type/Php/FunctionExistsFunctionTypeSpecifyingExtension.php
 
+		-
+			rawMessage: 'Doing instanceof PHPStan\Type\Constant\ConstantArrayType is error-prone and deprecated. Use Type::getConstantArrays() instead.'
+			identifier: phpstanApi.instanceofType
+			count: 1
+			path: src/Type/Php/InArrayFunctionTypeSpecifyingExtension.php
+
 		-
 			rawMessage: 'Doing instanceof PHPStan\Type\Constant\ConstantStringType is error-prone and deprecated. Use Type::getConstantStrings() instead.'
 			identifier: phpstanApi.instanceofType