switch to python 3.10

Author: blink1073

test/lambda/build_internal.sh

@@ -1,5 +1,5 @@
 #!/bin/bash -ex
 
 cd /src
-PYTHON=/opt/python/cp39-cp39/bin/python
+PYTHON=/opt/python/cp310-cp310/bin/python
 $PYTHON -m pip install -v -e .