chore(release): Bumped to Version 15.21.0

# [15.21.0](v15.20.3...v15.21.0) (2024-05-16)

### Bug Fixes

* merge conflicts ([9b9baaf](9b9baaf))
* open full forms instead of quick entries in onboarding, update button labels ([ef828ea](ef828ea))
* **patch:** set/update user type limit while updating lending perm config (backport [#1769](#1769)) ([#1770](#1770)) ([0554db1](0554db1))
* **Payroll:** handle empty condition/formula updates from salary components (backport [#1766](#1766)) ([#1772](#1772)) ([c5a055c](c5a055c))
* set payroll period dates based on last payroll period/current fiscal year ([15c8163](15c8163))
* simplify shift request overlapping validation ([edc8f72](edc8f72))
* validation of overlapping shift dates ([be36cea](be36cea))

### Features

* **Create Payroll Period:** set Start & End Date as that of Fiscal Year if no Payroll Period exists ([e91def2](e91def2))
* **minor:** allow using `rounded` function in salary slip formulae (backport [#1774](#1774)) ([#1776](#1776)) ([18cb376](18cb376))
* Preview Salary Slip from Salary Structure Assignment ([99dfea1](99dfea1))

hrms/__init__.py

@@ -1,6 +1,6 @@
 import frappe
 
-__version__ = "15.20.3"
+__version__ = "15.21.0"
 
 
 def refetch_resource(cache_key: str | list, user=None):