Add support for ClickHouse

What does this Merge Request do and why?

This adds ClickHouse support for GDK. ClickHouse will be used as the main database for ErrorTracking feature

The changes in this MR relies on the refactor in !2519 (merged), please merge that first.

When reviewing, before above MR is merged, see last commit only.

Closes gitlab-org/opstrace/opstrace#1650 (closed)

Relates to #1453 (moved)

Merge Request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise Issue to follow-up.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.