Update python Docker tag to v3.10

Dockerfile

@@ -1,5 +1,5 @@
 # Build backend wheels
-FROM python:3.9 AS builder
+FROM python:3.10 AS builder
 
 WORKDIR /wheels
 
@@ -20,7 +20,7 @@ COPY Makefile .
 RUN make fbuild
 
 
-FROM python:3.9-slim
+FROM python:3.10-slim
 
 # Switch to non-root user
 RUN groupadd -r runner && \