update devcontainer base to 23.10

[cwharris]

Update the devcontainer base to 23.10 (this has no relation to cudf versioning).

While there are other improvements, the main reason I'm upgrading is due to a newer version of git, which allows inline public key signing of commits - something we need to be able to commit changes while inside the container without having to manage separate container-specific signing keys.

Example of signing key usage (from host, inherited by devcontainer):

ssh-keygen -t ed25519 -C "[email protected]"
git config --global user.signingkey "key::$(cat ~/.ssh/id_ed25519.pub)"
git config --global commit.gpgsign true
git config --global gpg.format ssh
mkdir -p ~/.config/git
git config --global gpg.ssh.allowedSignersFile ~/.config/git/allowed_signers
awk 'BEGIN {FS=" "; OFS=" "} {print $3, $1, $2}' <(ssh-add -L) > ~/.config/git/allowed_signers

[cwharris]

/merge