replace quansight-labs/setup-python with actions/setup-python (#520)

Author: ngoldbaum

.github/workflows/ci.yml

@@ -114,7 +114,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: Quansight-Labs/setup-python@v5
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           architecture: ${{ matrix.platform.python-architecture }}