Update bash to 5.0

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

The patch is about job control in general instead of the builtin jobs
command

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

- Update bash to 4.4.18
 - Enable PKG_CHECK_FORMAT_SECURITY
 - Use shared libreadline
 - Enable job control

Fixes #5796, Closes #5858

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>