__package_pip: split extra 'all' to a list of all extras

This will fix if a package will be upgraded from some extras to all
extras. Previously, it will not work because some dependencies of 'all'
are already installed, so the feature 'all' is already installed.

Now, it will use a list of all extras to iterate over them separatly. This
will result it will never install all extras via `[all]`, but rather
`[foo,bar]`.
3 jobs for feature/__package_pip/extras in 1 minute and 10 seconds (queued for 19 seconds)
Status Job ID Name Coverage
  Test
passed #7860
pycodestyle

00:00:16

passed #7859
shellcheck

00:00:29

passed #7861
unit_tests

00:00:23