chore(deps): update actions/setup-python action to v6.1.0 (#61)

| datasource  | package              | from   | to     |
| ----------- | -------------------- | ------ | ------ |
| github-tags | actions/setup-python | v6.0.0 | v6.1.0 |

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/rigging_pr_description.yml

@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0 # full history for proper diffing
 
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.13"