Update dependency eslint-plugin-ghost to v3

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "bookshelf": "1.2.0",
     "deep-diff": "1.0.2",
     "eslint": "8.24.0",
-    "eslint-plugin-ghost": "2.15.1",
+    "eslint-plugin-ghost": "3.4.0",
     "knex": "2.4.0",
     "knex-migrator": "5.3.0",
     "mocha": "10.0.0",