Specify python version to use

Author: mhegazy

.github/workflows/swift-toolchain.yml

@@ -682,6 +682,8 @@ jobs:
           show-progress: false
 
       - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
 
       - name: Configure Tools
         run: |
@@ -1172,6 +1174,9 @@ jobs:
           }
 
       - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
       - uses: jannekem/run-python-script-action@v1
         with:
           script: |
@@ -1685,6 +1690,8 @@ jobs:
           local-cache: true
 
       - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
 
       - name: Configure LLVM
         if: matrix.os != 'Android' || inputs.build_android
@@ -2127,6 +2134,10 @@ jobs:
           setup-vs-dev-env: ${{ matrix.os == 'Windows' }}
           host-arch: ${{ matrix.arch }}
 
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
       - name: Compute workspace hash
         if: matrix.os != 'Android' || inputs.build_android
         id: workspace_hash
@@ -3461,6 +3472,9 @@ jobs:
           cmake --build ${{ github.workspace }}/BinaryCache/libdispatch --target install
 
       - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
       - uses: jannekem/run-python-script-action@v1
         if: matrix.os != 'Android' || inputs.build_android
         with: