chore: improve type hints (use type instead of typing.Type)

[waketzheng]

Description

Since Python3.9 typing.Type can be replaced by builtins.type:
https://docs.python.org/3.9/library/typing.html#typing.Type

Motivation and Context

How Has This Been Tested?

make ci

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.

[codspeed-hq]

CodSpeed Performance Report

Merging #1864 will not alter performance

_{Comparing waketzheng:replace-Type (8d1f7d6) with develop (3a5e836)}

Summary

✅ 8 untouched benchmarks

[coveralls]

Pull Request Test Coverage Report for Build 12950411609

Details

• 96 of 101 (95.05%) changed or added relevant lines in 26 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.002%) to 89.421%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tortoise/exceptions.py	4	5	80.0%
tortoise/fields/base.py	6	8	75.0%
tortoise/fields/relational.py	2	4	50.0%

Totals
Change from base Build 12927974311:	-0.002%
Covered Lines:	6492
Relevant Lines:	7077

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💛 - Coveralls