update tox mypy

update tox mypy

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After this commit https://github.com/sqlalchemy/sqlalchemy/commit/68cd3e8ec7098d4bb4b2102ad247f84cd89dfd8c
tox will fail with mypy below 1.16, at least locally.

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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: #12655
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/12655
Pull-request-sha: 15acf6b06570048d81aae89ef1d9f9a8ff83d88c

Change-Id: I7eb29a939a701ffd3a89a03d9705ab4954e66ffb
(cherry picked from commit 2ab2a3ed2a0b2b596da31e61e84ca5ff42c1ddc7)