docker: bump docker-flake.txt to include clang-14

[katrinafyi]

docker available at https://github.com/uq-pac/BASIL/pkgs/container/basil-tools-docker/525777622?tag=flake-1bf2-619d3503

diff of pac-nix from previous docker image. katrinafyi/pac-nix@569afdf...619d350

the only change to lifting tools is a minor change to aslp.

[katrinafyi]

cc @j-tobler for your review and use. note that clang-19 is still used by default. to use clang-14, you have to merge this branch then use

eval $(src/test/make/docker-helper.sh env)
export CLANG='docker-helper.sh /nix/store/88mdq6gkaxcj1bm2a0abvra9hba2g9mh-aarch64-unknown-linux-gnu-clang-wrapper-14.0.6/bin/aarch64-unknown-linux-gnu-clang'
docker-helper.sh pull
docker-helper.sh start
# ... liftmake.sh, etc... 

you'll have to repeat the eval and export commands in new terminals.