Merge branch 'psk-add-dogfooding-application-instrumentation' into 'master'

Add instrumenting backend internal events to dogfood Product Analytics

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/136154



Merged-by: Stan Hu <stanhu@gmail.com>
Approved-by: Radamanthus Batnag <rbatnag@gitlab.com>
Approved-by: Stan Hu <stanhu@gmail.com>
Reviewed-by: Radamanthus Batnag <rbatnag@gitlab.com>
Co-authored-by: Piotr Skorupa <pskorupa@gitlab.com>