Merge branch 'sy-support-product-categories-cloud_connector' into 'master'

Backfill product_categories in event/metric definitions for group:cloud_connector

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/172626



Merged-by: Niko Belokolodov <nbelokolodov@gitlab.com>
Approved-by: Roy Zwambag <rzwambag@gitlab.com>
Approved-by: Niko Belokolodov <nbelokolodov@gitlab.com>
Co-authored-by: syasonik <syasonik@gitlab.com>