fix(Travel Request): get currency from Employee Master's Company (backport #1807)

[mergify]

Before: The Currency for Travel Request was inherited from Global Defaults, which is set as USD
After: Gets the Currency from Employee Master's Company

---

This is an automatic backport of pull request #1807 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 533b968 has failed:

On branch mergify/bp/version-14-hotfix/pr-1807
Your branch is up to date with 'origin/version-14-hotfix'.

You are currently cherry-picking commit 533b96873.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   hrms/hr/doctype/travel_request/travel_request.json
	both modified:   hrms/hr/doctype/travel_request_costing/travel_request_costing.json

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[frappe-pr-bot]

🎉 This PR is included in version 14.28.3 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀