Disable UP038 Ruff rule to avoid introducing slower code

[luzfcb]

Description

Disable the UP038 Ruff rule to avoid introducing valid code, which is slower due to the lack of optimization in the Python interpreter itself.

This rule also does not exist in pyupgrade for the same reason.

Checklist:

• I've made sure that tests are updated accordingly (especially if adding or updating a template option)
• I've updated the documentation or confirm that my change doesn't require any updates

Rationale

Although Python 3.10 starts to support the use of Union in isinstance and issubclass, there is a considerable performance loss compared to using tuple, which has not yet been fully resolved in the Python interpreter.

Python 3.11 has improved performance but is still 4x slower than using tuples. Maybe it will be resolved in Python 3.13.
Check astral-sh/ruff#7871

[foarsitter]

Nice catch!