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

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
     "bili": "latest",
     "eslint": "^8.57.1",
     "node-fetch": "npm:node-fetch-native@^1.6.4",
-    "fetch-mock": "^9.11.0",
+    "fetch-mock": "^12.2.0",
     "jiti": "^1.21.6",
     "nyc": "latest",
     "sinon": "^17.0.1",