Update golang patch version to 1.19.9
Summary
The golang patch version should be updated from golang 1.19.8 to 1.19.9
Proposal
Ensure the build images for CI have been updated gitlab-build-images#128 (closed) then
Update and release a new builder version: https://gitlab.com/gitlab-org/gitlab-omnibus-builder/-/blob/master/docker/VERSIONS
And update the builder used in omnibus
Golang update process
As this is a critical security patch release of golang 1.19, and not the jump to 1.20, we shouldn't have to follow the full process in https://docs.gitlab.com/ee/development/go_guide/go_upgrade.html
BUT we need to ensure the majority of gitlab CI tests have run the new version via an update in gitlab-build-images#128 (closed)
And that when the change is merged, it's communicated via step 3 in https://docs.gitlab.com/ee/development/go_guide/go_upgrade.html#communication-plan so that is easy to identify if a production incident happens in the following auto-deploy rollout.