toaster: use force_bytes to display non-ascii project names

toaster: use force_bytes to display non-ascii project names

When user enters a non-ascii character in the project
name of toaster, the build doesn't get triggered.
Use force_bytes to fix this.

Also deal with non-ascii project names when logging the
build request in runbuilds.

[YOCTO #9071]

Signed-off-by: Sujith H <sujith.h@gmail.com>
Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>