Make SymfonyYamlParseRule opt-in via drupal.rules.symfonyYamlParseRule

Follows the same pattern as all other rules in this package: disabled
by default, enabled in bleedingEdge.neon.

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

Author: mglaman

bleedingEdge.neon

@@ -12,3 +12,4 @@ parameters:
 			hookRules: true
 			loggerFromFactoryPropertyAssignmentRule: true
 			entityStorageDirectInjectionRule: true
+			symfonyYamlParseRule: true

extension.neon

@@ -37,6 +37,7 @@ parameters:
 			hookRules: false
 			loggerFromFactoryPropertyAssignmentRule: false
 			entityStorageDirectInjectionRule: false
+			symfonyYamlParseRule: false
 		entityMapping:
 			aggregator_feed:
 				class: Drupal\aggregator\Entity\Feed
@@ -275,6 +276,7 @@ parametersSchema:
 			hookRules: boolean()
 			loggerFromFactoryPropertyAssignmentRule: boolean()
 			entityStorageDirectInjectionRule: boolean()
+			symfonyYamlParseRule: boolean()
 		])
 		entityMapping: arrayOf(anyOf(
 			structure([

rules.neon

@@ -1,7 +1,6 @@
 rules:
 	- mglaman\PHPStanDrupal\Rules\Drupal\Coder\DiscouragedFunctionsRule
 	- mglaman\PHPStanDrupal\Rules\Drupal\GlobalDrupalDependencyInjectionRule
-	- mglaman\PHPStanDrupal\Rules\Drupal\SymfonyYamlParseRule
 	- mglaman\PHPStanDrupal\Rules\Drupal\PluginManager\PluginManagerSetsCacheBackendRule
 	- mglaman\PHPStanDrupal\Rules\Drupal\RenderCallbackRule
 	- mglaman\PHPStanDrupal\Rules\Deprecations\StaticServiceDeprecatedServiceRule
@@ -35,6 +34,8 @@ conditionalTags:
 		phpstan.rules.rule: %drupal.rules.entityStorageDirectInjectionRule%
 	mglaman\PHPStanDrupal\Rules\Drupal\EntityStoragePropertyAssignmentRule:
 		phpstan.rules.rule: %drupal.rules.entityStorageDirectInjectionRule%
+	mglaman\PHPStanDrupal\Rules\Drupal\SymfonyYamlParseRule:
+		phpstan.rules.rule: %drupal.rules.symfonyYamlParseRule%
 
 services:
 	-
@@ -59,3 +60,5 @@ services:
 		class: mglaman\PHPStanDrupal\Rules\Drupal\EntityStorageDirectInjectionRule
 	-
 		class: mglaman\PHPStanDrupal\Rules\Drupal\EntityStoragePropertyAssignmentRule
+	-
+		class: mglaman\PHPStanDrupal\Rules\Drupal\SymfonyYamlParseRule