Bump go to 1.19.9

What does this MR do?

This MR bumps the required go version to 1.19.9 to keep up-to-date, and to assist with gitlab-development-kit#1812 (closed).

TODO

• Feature flag
  • Added feature flag:
  • This feature does not require a feature flag
• I added the Changelog trailer to the commits that need to be included in the changelog (e.g. Changelog: added)
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines