type pysqlite

type pysqlite

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type pysqlite from dialects.
type some related code on pysqlite.py

related to #6810

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This pull request is:

- [ ] A documentation / typographical / small typing error fix
	- Good to go, no issue or tests are needed
- [ ] A short code fix
	- please include the issue number, and create an issue if none exists, which
	  must include a complete example of the issue.  one line code fixes without an
	  issue and demonstration will not be accepted.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.   one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
	- please include the issue number, and create an issue if none exists, which must
	  include a complete example of how the feature would look.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.

**Have a nice day!**

Closes: #12789
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/12789
Pull-request-sha: 2c1ea7283d534dd625c8f0e4270247d2cc5ed40c

Change-Id: I4d691c4bb334957029cd47289463555034ebd866
(cherry picked from commit e833474db064df32a7c02e809893e71ac4df4996)