add custom key for ansible-lint to validate pattern schemas

Author: abikouo

specifications/pattern-schema/pattern-schema-dev.json

@@ -4,6 +4,7 @@
     "title": "Ansible Pattern Schema",
     "description": "A schema for validating Ansible pattern definitions",
     "type": "object",
+    "x-ansible-lint": ["patterns/*/meta/pattern.json"],
     "required": [
         "schema_version",
         "name",