ckeditor is now EOL.
See rm#46400

#45383

#45400

for the line including jquery_update

A number of packages are now available in the depot. We no longer
need to specify a specific file. We now can specify a minimum
version and tell it to take it from the depot.

Our build system uses podman 3.0.1 in Debian stable, which doesn't
support the volume argument :U.

Refs #43165

Refs #43165

In composer 1.x, --ignore-platform-reqs ignores all platform
requirements: PHP, hhvm, libs, extensions. This continues to be the
case in composer 2.x; however, 2.x includes a supplementary option:
--ignore-platform-req=x in which you may specify which of the
requirements you would like to ignore.

As part of the change, the Dockerfile was changed to run the build as
a non root user, and the steps adjusted to account for that when using
podman as a non-root user.

Refs #43165