chore(deps): update actions/setup-python action to v6 (#178)

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

Author: renovate[bot]

.github/workflows/integration-test.yml

@@ -51,7 +51,7 @@ jobs:
           bash integration-test/${{matrix.cluster}}/cluster.sh
 
       - name: setup python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.13
 

.github/workflows/pypi-publish.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: setup python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.13