Use Python 3.11

Author: agners

.github/workflows/build.yaml

@@ -214,9 +214,12 @@ jobs:
           ls -l /usr/bin/python*
       - name: Bootstrap
         working-directory: ./connectedhomeip/
-        run: bash scripts/bootstrap.sh -p all,darwin
+        run: |
+          alias python='python3.11'
+          bash scripts/bootstrap.sh -p all,darwin
       - name: Setup Build, Run Build and Run Tests
         run: |
+          alias python='python3.11'
           scripts/build/gn_gen.sh --args=" \
                                           chip_crypto=\"boringssl\"
                                           enable_rtti=true \