chore(deps): bump moment-timezone in /build/frontend-legacy

Bumps [moment-timezone](https://github.com/moment/moment-timezone) from 0.6.3 to 0.6.4.
- [Release notes](https://github.com/moment/moment-timezone/releases)
- [Changelog](https://github.com/moment/moment-timezone/blob/develop/changelog.md)
- [Commits](moment/moment-timezone@0.6.3...0.6.4)

---
updated-dependencies:
- dependency-name: moment-timezone
  dependency-version: 0.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build/frontend-legacy/package-lock.json

@@ -70,7 +70,7 @@
     "lodash": "^4.18.1",
     "marked": "^18.0.13",
     "moment": "^2.30.1",
-    "moment-timezone": "^0.6.3",
+    "moment-timezone": "^0.6.4",
     "p-limit": "^7.3.2",
     "p-queue": "^9.3.3",
     "path": "^0.12.7",