Bump @types/node from 14.14.28 to 14.14.30 in /frontend

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.14.28 to 14.14.30.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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

Author: dependabot[bot]

frontend/package.json

@@ -29,7 +29,7 @@
   "devDependencies": {
     "@ava/typescript": "1.1.1",
     "@types/marked": "1.2.2",
-    "@types/node": "14.14.28",
+    "@types/node": "14.14.30",
     "@types/react": "17.0.2",
     "@types/react-dom": "17.0.1",
     "@types/react-router-dom": "5.1.7",

frontend/yarn.lock

@@ -1894,10 +1894,10 @@
   resolved "https://registry.yarnpkg.com/@types/marked/-/marked-1.2.2.tgz#1f858a0e690247ecf3b2eef576f98f86e8d960d4"
   integrity sha512-wLfw1hnuuDYrFz97IzJja0pdVsC0oedtS4QsKH1/inyW9qkLQbXgMUqEQT0MVtUBx3twjWeInUfjQbhBVLECXw==
 
-"@types/node@*", "@types/[email protected].28":
-  version "14.14.28"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.28.tgz#cade4b64f8438f588951a6b35843ce536853f25b"
-  integrity sha512-lg55ArB+ZiHHbBBttLpzD07akz0QPrZgUODNakeC09i62dnrywr9mFErHuaPlB6I7z+sEbK+IYmplahvplCj2g==
+"@types/node@*", "@types/[email protected].30":
+  version "14.14.30"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.30.tgz#7d5162eec085ba34f8cb9011e9ba12119f76f961"
+  integrity sha512-gUWhy8s45fQp4PqqKecsnOkdW0kt1IaKjgOIR3HPokkzTmQj9ji2wWFID5THu1MKrtO+d4s2lVrlEhXUsPXSvg==
 
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"