chore(deps): bump xmlhttprequest-ssl from 1.5.5 to 1.6.3 in /app (#464)

Bumps [xmlhttprequest-ssl](https://github.com/mjwwit/node-XMLHttpRequest) from 1.5.5 to 1.6.3.
- [Release notes](https://github.com/mjwwit/node-XMLHttpRequest/releases)
- [Commits](mjwwit/node-XMLHttpRequest@1.5.5...1.6.3)

---
updated-dependencies:
- dependency-name: xmlhttprequest-ssl
  dependency-type: indirect
...

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