Merge branch '491051-implement-probes-for-checking-self-hosted-aigw-installation' into 'master'

Implement probes for checking self-hosted AIGW installation

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167016



Merged-by: Manoj M J <mmj@gitlab.com>
Approved-by: Fiona Neill <fneill@gitlab.com>
Approved-by: Eduardo Bonet <ebonet@gitlab.com>
Reviewed-by: Manoj M J <mmj@gitlab.com>
Reviewed-by: Matthias Käppler <mkaeppler@gitlab.com>
Reviewed-by: Nikola Milojevic <nmilojevic@gitlab.com>
Reviewed-by: Fiona Neill <fneill@gitlab.com>
Reviewed-by: Eduardo Bonet <ebonet@gitlab.com>
Reviewed-by: Patrick Cyiza <jpcyiza@gitlab.com>