remove curl from osx legacy build (#1493)

.github/workflows/package-osx-legacy.yml

@@ -32,11 +32,12 @@ jobs:
       MACOSX_DEPLOYMENT_TARGET: '10.14'
     steps:
       - uses: actions/checkout@v7
-      - name: Get Python
-        run: curl https://www.python.org/ftp/python/3.11.9/python-3.11.9-macos11.pkg -o "python.pkg"
-      - name: Install Python
-        run: |
-          sudo installer -pkg python.pkg -target /
+      - name: Set up Python
+        uses: actions/setup-python@v7
+        with:
+          python-version: 3.11
+          check-latest: true
+          cache: 'pip'
       - name: Install Python dependencies
         # Legacy macOS needs Python 3.11, so this emudhra workaround is needed
         run: |