Allow users to disable use of pre-commit-uv

This will allow the failsafe DISABLE_PRE_COMMIT_UV_PATCH=1 variable
to be used with `tox -e fix`.

Related:
- #3428
- tox-dev/pre-commit-uv#28

Author: ssbarnea

tox.toml

@@ -51,7 +51,7 @@ commands = [
 description = "format the code base to adhere to our styles, and complain about what we cannot do automatically"
 skip_install = true
 dependency_groups = ["fix"]
-pass_env = [{ replace = "ref", of = ["env_run_base", "pass_env"], extend = true }, "PROGRAMDATA"]
+pass_env = [{ replace = "ref", of = ["env_run_base", "pass_env"], extend = true }, "PROGRAMDATA", "DISABLE_PRE_COMMIT_UV_PATCH"]
 commands = [["pre-commit", "run", "--all-files", "--show-diff-on-failure", { replace = "posargs", extend = true }]]
 
 [env.type]