Log to GitHub annotations instead of stdout

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

Locate the logger.debug, logger.warning, logger.error, and logger.exception implementations in the repository, then read the linked GitHub Actions workflow-command documentation. Done means these log methods create GitHub annotations instead of only writing to stdout, with log output grouped where appropriate.

Written by the indexing model from the issue text.