Commitbf8187d5dc("CI: use split target and subtarget in label workflow") didn't correctly output subtarget resulting in calling with an empty subtarget. Fix this and correctly output generated subtarget. Fixes:bf8187d5dc("CI: use split target and subtarget in label workflow") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> (cherry picked from commit8aa5a86010)