Bump moment from 2.29.3 to 2.30.1 in /react-express-mongodb/backend

Bumps [moment](https://github.com/moment/moment) from 2.29.3 to 2.30.1.
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/moment/moment/compare/2.29.3...2.30.1)

---
updated-dependencies:
- dependency-name: moment
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

react-express-mongodb/backend/package-lock.json

@@ -886,9 +886,9 @@
       "dev": true
     },
     "moment": {
-      "version": "2.29.3",
-      "resolved": "https://registry.npmjs.org/moment/-/moment-2.29.3.tgz",
-      "integrity": "sha512-c6YRvhEo//6T2Jz/vVtYzqBzwvPT95JBQ+smCytzf7c50oMZRsR/a4w88aD34I+/QVSfnoAnSBFPJHItlOMJVw=="
+      "version": "2.30.1",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.30.1.tgz",
+      "integrity": "sha512-uEmtNhbDOrWPFS+hdjFCBfy9f2YoyzRpwcl+DqpC6taX21FzsTLQVbMV/W7PzNSX6x/bhC1zA3c2UQ5NzH6how=="
     },
     "mongodb": {
       "version": "3.6.5",