update python in docker files (#1097)

Author: sbryngelson

.github/Dockerfile

@@ -9,19 +9,23 @@ ARG COMPILER_PATH
 ARG COMPILER_LD_LIBRARY_PATH
 
 RUN apt-get update -y && \
+    apt-get install -y software-properties-common ca-certificates gnupg && \
+    add-apt-repository ppa:deadsnakes/ppa && \
+    apt-get update -y && \
     if [ "$TARGET" != "gpu" ]; then \
         apt-get install -y \
-            build-essential git make cmake gcc g++ gfortran bc\
-            python3 python3-venv python3-pip \
+            build-essential git make cmake gcc g++ gfortran bc \
+            python3.11 python3.11-venv python3-pip \
             openmpi-bin libopenmpi-dev libfftw3-dev \
             mpich libmpich-dev; \
     else \
         apt-get install -y \
-            build-essential git make cmake bc\
-            python3 python3-venv python3-pip \
+            build-essential git make cmake bc \
+            python3.11 python3.11-venv python3-pip \
             libfftw3-dev \
             openmpi-bin libopenmpi-dev; \
     fi && \
+    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 2 && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 ENV OMPI_ALLOW_RUN_AS_ROOT=1