build(deps): update actions/setup-python action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         id: setup-python
         with:
           python-version: ">=3.9"
@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -119,7 +119,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set Up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ">=3.9"