Since #16132, we've consolidated the setting of FORCE_UNSAFE_CONFIGURE to
`autotools.py`, so we don't need to use it in packages like `coreutils`,
in our commands, or in our container recipes.
- [x] Remove FORCE_UNSAFE_CONFIGURE from packages
- [x] Remove FORCE_UNSAFE_CONFIGURE from container recipes
- [x] Remove FORCE_UNSAFE_CONFIGURE from `spack ci` command
* docker: add missing module to ubuntu images
* docker: fix issue with missing locale
* docker: one package per line + rm python2 support
* docker: ubuntu image also needs 'file' for buildcache creation
* fix docker builds/remove extra builds/add ci builds
* preinstall vim in CI builder images
* simplify & streamline docker resources
* restore os-container-mapping.yaml file
