ci: switch from pre-commit to prek

noxfile.py

@@ -27,21 +27,11 @@ def lint(s: nox.Session, /) -> None:
 
 @session(uv_groups=["lint"], reuse_venv=True)
 def precommit(s: nox.Session, /) -> None:
-    """Run the pre-commit hooks."""
-    # no-commit-to-branch guards a human's local `git commit`/`git push`,
-    # not a manual "run every hook over all files" invocation like this
-    # one -- which CI also runs on every push to `main`, where it would
-    # otherwise always fail. Skipped here (locally or in CI); the
-    # installed git hook still catches the real case. Add it to any SKIP
-    # a caller already set, rather than clobbering it.
+    """Run the pre-commit hooks (via prek)."""
+    # Not a real commit -- no-commit-to-branch would always fail here.
+    # Merge into any SKIP already set, rather than clobber it.
     skip = ",".join(filter(None, [os.environ.get("SKIP"), "no-commit-to-branch"]))
-    s.run(
-        "pre-commit",
-        "run",
-        "--all-files",
-        *s.posargs,
-        env={"SKIP": skip},
-    )
+    s.run("prek", "run", "--all-files", *s.posargs, env={"SKIP": skip})
 
 
 @session(uv_groups=["lint"], reuse_venv=True)

pyproject.toml

@@ -57,7 +57,7 @@ build = [
 ]
 lint = [
   "mypy>=1.19.0",
-  "pre-commit>=4.1.0",
+  "prek>=0.5.3",
   "pylint>=3.3.8",
 ]
 nox = [
@@ -193,12 +193,14 @@ src = ["src"]
 
 [tool.uv]
 constraint-dependencies = [
-  # `pre-commit` allows any `nodeenv>=0.11.1`, and 0.11.1 is a 2012 sdist whose
-  # `setup.py` imports `pkg_resources` at build time -- long gone from modern
-  # setuptools, so `--resolution lowest` cannot build it and the "Check Oldest
-  # Dependencies" job dies before collecting a single test. Dev tooling: its
-  # floor says nothing about which dependencies this library supports.
-  "nodeenv>=1.9.1",
+  # `commitizen` (pulled in via `cz-conventional-gitmoji`) allows any bare
+  # `pyyaml`, and `--resolution lowest` picks 3.10 -- a 2013 sdist that fails
+  # to build against modern CPython's C API (`PyCode_New`'s signature
+  # changed, `PyFrameObject` is now an incomplete type). `pre-commit` used to
+  # mask this by requiring `pyyaml>=5.1`; switching it out for `prek` removed
+  # that floor. Dev tooling: its floor says nothing about which dependencies
+  # this library supports.
+  "pyyaml>=5.1",
   # `build` depends on a bare, unbounded `pyproject_hooks`, so `--resolution
   # lowest` picks 0.1.0 -- a 2021 release predating `BuildBackendHookCaller`,
   # which `build` 1.x calls unconditionally, so `nox -s build` dies with an