Using python 3.11 by pyenv

Bug: 394025850
Change-Id: I7f239270622ecf8d95412c68f305de083090bbab
Test: kokoro
diff --git a/build/debian/kokoro/gcp_ubuntu_docker/aarch64/build.sh b/build/debian/kokoro/gcp_ubuntu_docker/aarch64/build.sh
index 43f0338..a6a41e5 100644
--- a/build/debian/kokoro/gcp_ubuntu_docker/aarch64/build.sh
+++ b/build/debian/kokoro/gcp_ubuntu_docker/aarch64/build.sh
@@ -2,6 +2,17 @@
 
 set -e
 
+# pyenv set up to use python 3.11
+sudo apt update; sudo apt install build-essential libssl-dev zlib1g-dev \
+  libbz2-dev libreadline-dev libsqlite3-dev curl git \
+  libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
+git clone https://github.com/pyenv/pyenv.git ~/.pyenv
+export PYENV_ROOT="$HOME/.pyenv"
+export PATH="$PYENV_ROOT/bin:$PATH"
+pyenv install 3.11
+pyenv global 3.11
+python --version
+
 cd "${KOKORO_ARTIFACTS_DIR}/git/avf/build/debian/"
 sudo losetup -D
 grep vmx /proc/cpuinfo || true
diff --git a/build/debian/kokoro/gcp_ubuntu_docker/x86_64/build.sh b/build/debian/kokoro/gcp_ubuntu_docker/x86_64/build.sh
index 0655046..dbcf2b9 100644
--- a/build/debian/kokoro/gcp_ubuntu_docker/x86_64/build.sh
+++ b/build/debian/kokoro/gcp_ubuntu_docker/x86_64/build.sh
@@ -2,6 +2,10 @@
 
 set -e
 
+# pyenv set up to use python 3.11
+sudo apt update; sudo apt install build-essential libssl-dev zlib1g-dev \
+  libbz2-dev libreadline-dev libsqlite3-dev curl git \
+  libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
 git clone https://github.com/pyenv/pyenv.git ~/.pyenv
 export PYENV_ROOT="$HOME/.pyenv"
 export PATH="$PYENV_ROOT/bin:$PATH"