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

Author: renovate[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "@types/node": "^22.0.0",
     "@vitest/coverage-v8": "^3.0.0",
     "esbuild": "^0.25.0",
-    "fetch-mock": "^11.0.0",
+    "fetch-mock": "^12.0.0",
     "glob": "^11.0.0",
     "mockdate": "^3.0.4",
     "prettier": "3.5.3",