fix(deps): update dependency @types/superagent to v4.1.15

Author: renovate[bot]

packages/mock/package.json

@@ -39,7 +39,7 @@
   },
   "dependencies": {
     "@midwayjs/async-hooks-context-manager": "^3.5.1",
-    "@types/superagent": "4.1.14",
+    "@types/superagent": "4.1.15",
     "@types/supertest": "2.0.12",
     "fs-extra": "10.0.1",
     "js-yaml": "4.1.0",