shell: Upgrade CRaSH to 1.3.0-beta11

This update fixes a couple of OSv related bugs:
* Inline editing (previous version ignored ANSI support)
* Previous versions did not accept an external (non-bundled) SSH host key

Tested-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Signed-off-by: Or Cohen <orc@fewbytes.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>