Add `debug` codeowners
# JIB owners
**/**jib** @briandealwis @loosebazooka @TadCordle @chanseokoh @balopat @dgageot @nkubala @priyawadhwa @tejal29
+
+# Debug owners
+pkg/skaffold/debug/** @briandealwis @loosebazooka @ILMTitan @quoctruong
