ci: pin ruff to the latest passing release (#408)

* ci: pin ruff to the passing baseline

* ci: use the latest passing ruff release

* ci: share the ruff pin through a lint dependency group

* ci: note follow-up to update lint and unpin ruff

.github/workflows/wheels.yml

@@ -111,7 +111,8 @@ jobs:
 
       - name: Lint and format with ruff
         run: |
-          pip install ruff
+          pip install --upgrade pip
+          pip install --group lint
           ruff check .
           ruff format --check .
 

pyproject.toml

@@ -22,15 +22,20 @@ dependencies = [
 
 [dependency-groups]
 dev = [
-    "ruff",
     "tox",
     "pkgconfig",
     "cython>=3.0",
     "setuptools",
+    {include-group = "lint"},
     {include-group = "test"},
     {include-group = "docs"},
 ]
 
+lint = [
+    # TODO: Update lint and formatting for newer Ruff releases, then remove the pin.
+    "ruff==0.15.22",
+]
+
 test = [
     "pytest",
     "anyio",