fix: move to Ubuntu Kinetic

this is the only distro i know that has both the required libc version
to run some newer clang / gcc builds and has python2 support

newer Ubuntu releases and Debian Bookworm completely dropped python2 support
Debian Bullseye and Ubuntu releases older than Kinetic doesnt have the
libc version requied

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/debian:bookworm-slim
+FROM docker.io/library/ubuntu:kinetic
 ENV DEBIAN_FRONTEND noninteractive
 COPY * /
 ENTRYPOINT [ "/entrypoint.sh" ]

docker/entrypoint.sh

@@ -2,7 +2,7 @@
 
 apt-get update
 apt-get install llvm lld bc bison ca-certificates curl flex gcc git libc6-dev \
-  libssl-dev openssl python3 zip zstd make clang gcc-arm-linux-gnueabi \
+  libssl-dev openssl python3 python2 zip zstd make clang gcc-arm-linux-gnueabi \
   software-properties-common device-tree-compiler libxml2 libarchive-tools \
   libelf-dev libssl-dev libtfm-dev wget xz-utils -y
 ln -sf "/usr/bin/python3" /usr/bin/python