Align Prettier versions

The Prettier version specified in `pyproject.toml` was previously
updated from 2 to 3. However, the Prettier version used to generate
the changelog was not updated. This commit will update the Prettier
version used to generate the changelog to 3 so all formatting is done
with Prettier 3.

.github/workflows/ci.yml

@@ -199,7 +199,7 @@ jobs:
           git tag -l --sort=-taggerdate:iso --format="$GIT_LOG_FORMAT" >>CHANGELOG.md
           git tag -l --sort=-taggerdate:iso --format="$GIT_LOG_FORMAT" >>docs/changelog.md
       - name: Format changelog with Prettier
-        run: npx -s -y prettier@'^2' --write CHANGELOG.md docs/changelog.md
+        run: npx -s -y prettier@'^3' --write CHANGELOG.md docs/changelog.md
       - name: Create pull request with updated changelog
         uses: peter-evans/create-pull-request@v6
         with: