chore(deps): Bump moment from 2.24.0 to 2.29.4 in /webapp

Bumps [moment](https://github.com/moment/moment) from 2.24.0 to 2.29.4.
- [Release notes](https://github.com/moment/moment/releases)
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](moment/moment@2.24.0...2.29.4)

---
updated-dependencies:
- dependency-name: moment
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

webapp/package-lock.json

@@ -15,7 +15,7 @@
     "i18next-browser-languagedetector": "^5.0.0",
     "i18next-http-backend": "^1.0.17",
     "lodash.isequal": "^4.5.0",
-    "moment": "2.24.0",
+    "moment": "2.29.4",
     "query-string": "^6.13.7",
     "react": "^16.14.0",
     "react-app-polyfill": "^0.2.2",

webapp/package.json

@@ -7573,6 +7573,11 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
   integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
 
+[email protected]:
+  version "2.29.4"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.4.tgz#3dbe052889fe7c1b2ed966fcb3a77328964ef108"
+  integrity sha512-5LC9SOxjSc2HF6vO2CyuTDNivEdoz2IvyJJGj6X8DJ0eFyfszE0QiEd+iXmBvUP3WHxSjFH/vIsA0EN00cgr8w==
+
 moo@^0.4.3:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/moo/-/moo-0.4.3.tgz#3f847a26f31cf625a956a87f2b10fbc013bfd10e"