py-pylint: updated to 2.15.10

What's new in Pylint 2.15.10?

False Positives Fixed

Fix use-sequence-for-iteration when unpacking a set with *.

Fix false positive assigning-non-slot when a class attribute is re-assigned.

Fixes used-before-assignment false positive when the walrus operator is used in a ternary operator.

Prevent used-before-assignment when imports guarded by if
TYPE_CHECKING are guarded again when used.

Other Bug Fixes

Using custom braces in msg-template will now work properly.

(adam)