fix: remove ESS role when not mapped to employee (#37867)
* fix: remove ESS role when not mapped to employee
* fix: emp role removal on unlinking
* fix: test case for user employee role mapping
* fix: mapped employee and user on creation
(cherry picked from commit 56b8d1b9277a1290b18c6745736bef8dfa4e6f90)
Co-authored-by: Dany Robert <danyrt@wahni.com>