chore: update escaping in ignoredError

Author: tinect

phpstan.neon

@@ -11,5 +11,8 @@ parameters:
             message: "#^Out of .* possible param types, only .* %% actually have it\\. Add more param types to get over 99 %%$#"
             reportUnmatched: false
         -
-            message: "#Call to deprecated method execute\\(\\) of class Shopware\\Core\\Framework\\DataAbstractionLayer\\Doctrine\\RetryableQuery\\: tag\\:v6.7.0 - reason\\:return-type-change - return type will be changed to int\\|string#"
+            message: """
+            				#^Call to deprecated method execute\\(\\) of class Shopware\\\\Core\\\\Framework\\\\DataAbstractionLayer\\\\Doctrine\\\\RetryableQuery\\:
+            				tag\\:v6\\.7\\.0 \\- reason\\:return\\-type\\-change \\- return type will be changed to int\\|string$#
+            			"""
             reportUnmatched: false