Bump mongoose from 4.13.20 to 5.9.6 in /source/management_api (#448)

dependabot[bot] · web-flow · commit 6624cc9a8843 · 2020-04-28T16:13:49.000+08:00
diff --git a/source/management_api/package.json b/source/management_api/package.json
@@ -9,7 +9,7 @@
     "toml": "*",
     "ajv": "^5.2.2",
     "body-parser": "*",
-    "mongoose": "^4.13.6",
+    "mongoose": "^5.9.6",
     "fraction.js": "^4.0.12"
   },
   "engine": {
