[2.2.0] Checkmk Werk 16109 created: host_tag_group: restrict ident to same pattern as in UI

Title: host_tag_group: restrict ident to same pattern as in UI Class: fix Compatible: compat Component: rest-api Date: 1698323057 Edition: cre Knowledge: undoc Level: 1 State: unknown Version: 2.2.0p13 Prior to this werk, the allowed string pattern for the host tag group id differed to the pattern allowed in the UI. This werk adjusts the pattern allowed in the REST API to match the one in the UI.