chore(deps): bump https-proxy-agent and github in /app

Bumps [https-proxy-agent](https://github.com/TooTallNate/node-https-proxy-agent) to 5.0.0 and updates ancestor dependency [github](https://github.com/octokit/rest.js). These dependencies need to be updated together.


Updates `https-proxy-agent` from 1.0.0 to 5.0.0
- [Release notes](https://github.com/TooTallNate/node-https-proxy-agent/releases)
- [Commits](TooTallNate/proxy-agents@1.0.0...5.0.0)

Updates `github` from 9.2.0 to 14.0.0
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v9.2.0...v14.0.0)

---
updated-dependencies:
- dependency-name: https-proxy-agent
  dependency-type: indirect
- dependency-name: github
  dependency-type: direct:production
...

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

Author: dependabot[bot]

app/package-lock.json

@@ -43,7 +43,7 @@
     "file-exists": "1.0.0",
     "fs-extra": "10.1.0",
     "ftp": "0.3.10",
-    "github": "9.2.0",
+    "github": "14.0.0",
     "handlebars": "4.7.7",
     "html-minifier": "4.0.0",
     "image-downloader": "3.3.0",