chore: grant Employee role read permission for Payroll Period (backport #1746)

[mergify]

Closes #1728

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This is an automatic backport of pull request #1746 done by Mergify.

[mergify]

Cherry-pick of ce86478 has failed:

On branch mergify/bp/version-14-hotfix/pr-1746
Your branch is up to date with 'origin/version-14-hotfix'.

You are currently cherry-picking commit ce8647884.
  (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/payroll/doctype/payroll_period/payroll_period.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 14.27.1 🎉

The release is available on GitHub release

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