Log to GitHub annotations instead of stdout

[carlcsaposs-canonical]

Annotations example:

logger.debug, logger.warning, and logger.error/logger.exception should create annotations using workflow commands

Workflow commands docs:
https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#using-workflow-commands-to-access-toolkit-functions
https://github.com/actions/toolkit/blob/main/docs/commands.md

Also log output can be grouped to improve readability: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#grouping-log-lines