[primer noise] `deprecated-typing-alias`

[jacobtylerwalls]

Found a reproducible case for some of the primer noise we see constantly.

1. clone pytest @ cdddd6d69533c07092c64445a0d42d1fc75c8299
2. cd to src/_pytest
3. Compare:

• pylint *.py --disable=all --enable-all-extensions --enable=deprecated-typing-alias: 647 messages
• pylint *.py --disable=all --enable-all-extensions --enable=deprecated-typing-alias,used-before-assignment: 585 messages

[jacobtylerwalls]

Same issue as pylint-dev/astroid#2185 -- need to apply the fix all over the typing brain.