refactor: only replace password by star when logging level is debug

[waketzheng]

Description

When db_url is 'postgres://postgres:[email protected]:5432/db_name'
logger msg will be: 'po***://po***:po***@127.0.0.1:5432/db_name'
that looks strange!

Motivation and Context

How Has This Been Tested?

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added the changelog accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[coveralls]

Pull Request Test Coverage Report for Build 12441451819

Details

• 3 of 14 (21.43%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.2%) to 89.94%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tortoise/init.py	3	14	21.43%

Totals
Change from base Build 12437576482:	-0.2%
Covered Lines:	6374
Relevant Lines:	6967

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💛 - Coveralls

[henadzit]

The new code is overly complex. We shouldn't have something that complicated in the main file of the whole project. I would personally have more stars in the debug logs than 5 nested blocks of code to handle it.