Add GitLabMonitor update

/cc @rawlingsj

I am trying to implement to get the release and tag info from the Gitlab Api in wolfictl.

Currently all the packages which are in GitLab uses Release Monitor to update the package.
But by this we do not get the commit sha of that update and we have to manually update the expected-commit sha for those package updates.

Functional Changes

• This change can build all of Wolfi without errors (describe results in notes)

Notes:

This is a Update configuration change (addition of new update config) should not affect any wolfi package build

SCA Changes

• Examining several representative APKs show no regression / the desired effect (details in notes)

Notes:

Linter

• The new check is clean across Wolfi
• The new check is opt-in or a warning

Notes: