Openapi Schema improvements

- Return proper booleans in api responses
- Update jsonschemavalidation to latest draft

backend/schema/paths/nginx/certificates/certID/renew/post.json

@@ -32,7 +32,7 @@
 								"id": 4,
 								"created_on": "2024-10-09T05:31:58.000Z",
 								"owner_user_id": 1,
-								"is_deleted": 0,
+								"is_deleted": false,
 								"provider": "letsencrypt",
 								"nice_name": "My Test Cert",
 								"domain_names": ["test.jc21.supernerd.pro"],