Update .github/workflows/tests.yml

Co-authored-by: Stan Ulbrych <[email protected]>

Author: pganssle

.github/workflows/tests.yml

@@ -60,7 +60,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: ${{ matrix.toxenv }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.x"
       - name: Install tox