[Pkg-samba-maint] libldb-dev should depend on libtevent-dev

[Jonathon Reinhart]

To whom it my concern:

On current buster, libldb-dev depends on libtalloc-dev, but it should
also depend on libtevent-dev.

This is evident as <ldb.h> has these two lines:

#include <talloc.h>
#include <tevent.h>

And without libtevent-dev installed, one will get this compilation error:

/usr/include/ldb.h:51:10: fatal error: tevent.h: No such file or directory
 #include <tevent.h>
          ^~~~~~~~~~
compilation terminated.

Regards,
Jonathon Reinhart