Updating submodule pointer for core
Adding v2 error line support, and tests
Insert newlines correctly when splitting literal blocks

Fixes #9274
Fetch vars for host directly when calculating the delegated user

This fixes the case in which the delegated to host may not be in the
specified hosts list, in which cases facts/vars for the host were
not available in the injected hostvars.

This also fixes the inventory variable fetching function, so that an
unknown host raises a proper error as opposed to a NoneType exception.

Fixes #8224