LU-14010 build: Ensure dkms installs all Lustre modules

LU-14010 build: Ensure dkms installs all Lustre modules

Add --force to dkms install in:
  debian/lustre-client-modules-dkms.postinst

Without it older than available modules are skipped.

Signed-off-by: Amin Tootoonchian <amint@openai.com>
Change-Id: I1d549e7d48d60294810e11ed2588a512f1527eda
Reviewed-on: https://review.whamcloud.com/40225
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Petros Koutoupis <petros.koutoupis@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>