fix: UOM was not fetching in purchase invoice (frappe#19732) (frappe#…

…19737)

* fix: UOM was not fetching in purchase invoice

* fix: Changes requested

Co-authored-by: Marica <[email protected]>

Release 12.2.0

fix: code cleanup

Release 11.1.68

Release 12.1.8

Release 12.1.7

Release 11.1.67

Release 11.1.66

Release 12.1.6

Release 11.1.65