4.2.2 : ease usage of `denv` and simplify entrypoint

This patch release is just to have a marked tag for any users interested in trying to use denv with ldmx-sw. #95 moved environment initialization into its own script that both the /etc/skel/.profile and /etc/entry.sh can source. The first file is copied by denv into the user's workspace to be used by the container's shell when initializing and the second is used by ldmx when launching the container. This means both can initialize an equivalent environment without further setup of the user's local copy of .profile.

What's Changed

• move environment initialization into separate script by @tomeichlersmith in #95
• Bump actions/configure-pages from 4 to 5 by @dependabot in #96

Full Changelog: 4.2.1...4.2.2