Update logging levels from Debug to Info

What does this MR do?

Change DEBUG logs to INFO log levels so they will be logged without debug mode enabled.

Why was this MR needed?

To address difficulty in troubleshooting with too few logs output at the INFO level. See more at #28764 (closed) and https://gitlab.com/gitlab-com/gl-infra/production/-/issues/6018

What's the best way to test this MR?

Passing CI is sufficient, changes to code are only in logging and thoroughly tested.

What are the relevant issue numbers?

#28764 (closed)

https://gitlab.com/gitlab-com/gl-infra/production/-/issues/6018