fix CI: regenerate workflows, update uv.lock, format script

- Regenerate misc.yml for new changelog/new-changelog tox envs
- Update uv.lock for towncrier dependency
- Apply ruff formatting to check_changelog_fragment.py

Assisted-by: Claude Opus 4.6

Author: MikeGoldsmith

.github/workflows/misc.yml

@@ -29,6 +29,44 @@ env:
 
 jobs:
 
+  changelog:
+    name: changelog
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repo @ SHA - ${{ github.sha }}
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install tox
+        run: pip install tox-uv
+
+      - name: Run tests
+        run: tox -e changelog
+
+  new-changelog:
+    name: new-changelog
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repo @ SHA - ${{ github.sha }}
+        uses: actions/checkout@v4
+
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install tox
+        run: pip install tox-uv
+
+      - name: Run tests
+        run: tox -e new-changelog
+
   spellcheck:
     name: spellcheck
     runs-on: ubuntu-latest

scripts/check_changelog_fragment.py

@@ -64,16 +64,10 @@ def main():
     print("⚠ No changelog fragment found on this branch.")
     print()
     print("Create one with:")
-    print(
-        '  tox -e new-changelog -- PR_NUMBER TYPE "Description"'
-    )
-    print(
-        "  where TYPE is one of: added, changed, deprecated, removed, fixed"
-    )
+    print('  tox -e new-changelog -- PR_NUMBER TYPE "Description"')
+    print("  where TYPE is one of: added, changed, deprecated, removed, fixed")
     print()
-    print(
-        "Or skip this check with: SKIP=changelog tox -e precommit"
-    )
+    print("Or skip this check with: SKIP=changelog tox -e precommit")
     return 1