Fix the jaspar exclude path and skip the mypy hook on pre-commit.ci

The exclude still pointed at the pre-restructure `_atac` directory, and
pre-commit.ci has no `uv` to run the mypy hook with; the GitHub Actions
pre-commit job still runs it.

Author: Zethson

.pre-commit-config.yaml

@@ -6,7 +6,10 @@ default_stages:
   - pre-push
 minimum_pre_commit_version: 2.16.0
 # Bundled JASPAR motif reference data, not source code.
-exclude: ^src/muon/_atac/_ref/jaspar/
+exclude: ^src/muon/atac/_ref/jaspar/
+ci:
+  # The mypy hook shells out to uv, which is unavailable on pre-commit.ci.
+  skip: [mypy]
 repos:
   - repo: https://github.com/biomejs/pre-commit
     rev: v2.5.4