chore(deps): update dependency fetch-mock to v12

Author: renovate[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "@types/node": "^22.0.0",
     "camelcase": "^8.0.0",
     "esbuild": "^0.25.0",
-    "fetch-mock": "^11.0.0",
+    "fetch-mock": "^12.0.0",
     "github-openapi-graphql-query": "^5.0.0",
     "glob": "^11.0.0",
     "jest": "^30.0.0",