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

Author: renovate[bot]

package-lock.json

@@ -26,7 +26,7 @@
     "@types/node": "^22.0.0",
     "@vitest/coverage-v8": "^3.1.4",
     "esbuild": "^0.25.0",
-    "fetch-mock": "^11.0.0",
+    "fetch-mock": "^12.0.0",
     "prettier": "3.5.3",
     "tinyglobby": "^0.2.13",
     "typescript": "^5.0.0",