logger enhancement

[tavallaie]

I tried to solve #8, but I didn't add unittest for logger. Also I add loguru as an optional dependency with fall back mechanism.

[tavallaie]

intersting, I found some bugs that bypass the tests :D

[tavallaie]

I don't know if it is a bug or not.
@ChuckHend why do we have this in our tests and still it is passing the tests? I don't have a clue here

..2025-10-20 16:13:48,496 - pgmq.async_queue - ERROR - Transaction failed: transactional_create_queue - transactional_create_queue() got an unexpected keyword argument 'conn' | event=transaction_error | function=transactional_create_queue | error_type=TypeError | error_message=transactional_create_queue() got an unexpected keyword argument 'conn' | conn_id=139933109644304
.2025-10-20 16:13:48,549 - pgmq.async_queue - ERROR - Transaction failed: transactional_operation - transactional_operation() got an unexpected keyword argument 'conn' | event=transaction_error | function=transactional_operation | error_type=TypeError | error_message=transactional_operation() got an unexpected keyword argument 'conn' | conn_id=139933109896288

[ChuckHend]

@tavallaie , I see that too. Maybe something broke when we ported the CI over?

[tavallaie]

@ChuckHend, I didn't see it in last action before I adding logger to the decorator so I will revert it to find if it is related to my changes or not.

[tavallaie]

OK, my decorator.py changes can bypass the tests, so I’ll go with Plan B.
I’ll fix some minor styling issues on the main branch and publish a new version on PyPI.
Then I’ll work on more unit tests and come back to this enhancement later.