Bump moment from 2.17.1 to 2.19.3

Bumps [moment](https://github.com/moment/moment) from 2.17.1 to 2.19.3.
- [Release notes](https://github.com/moment/moment/releases)
- [Changelog](https://github.com/moment/moment/blob/develop/CHANGELOG.md)
- [Commits](moment/moment@2.17.1...2.19.3)

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

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

package.json

@@ -62,7 +62,7 @@
     "jsrender": "0.9.88",
     "lib-jitsi-meet-dist": "^2.1.5",
     "markdown-it": "^12.1.0",
-    "moment": "2.17.1",
+    "moment": "2.19.3",
     "plyr": "^3.6.8",
     "popper.js": "^1.16.1",
     "qrcodejs": "^1.0.0",

yarn.lock

@@ -4977,10 +4977,10 @@ mkdirp@^0.5.1:
   dependencies:
     minimist "^1.2.5"
 
-moment@2.17.1:
-  version "2.17.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.17.1.tgz#fed9506063f36b10f066c8b59a144d7faebe1d82"
-  integrity sha1-/tlQYGPzaxDwZsi1mhRNf66+HYI=
+moment@2.19.3:
+  version "2.19.3"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.19.3.tgz#bdb99d270d6d7fda78cc0fbace855e27fe7da69f"
+  integrity sha1-vbmdJw1tf9p4zA+6zoVeJ/59pp8=
 
 [email protected]:
   version "2.24.0"