Describe the bug
After each log entry, an unhandled error is returned:

Invalid type dict for attribute 'custom_dimensions' value. Expected one of ['bool', 'str', 'bytes', 'int', 'float'] or a sequence of those types.

This error appears to be stemming from backend\src\logger\application_insights_workflow_callbacks.py, as the
extra attribute of self._logger.info does not accept a dict for custom_dimensions.

To Reproduce
Steps to reproduce the behavior:

1. Start an indexing job.
2. View the logs in Azure Monitor.
3. Note the errors.

Expected behavior
Errors are not logged to the console.