add @Andreas-Krebbel to owners of zDNN backend
Signed-off-by: Aaron Teo <redacted>
/ggml/src/ggml-quants.* @ggerganov
/ggml/src/ggml-threading.* @ggerganov @slaren
/ggml/src/ggml-vulkan/ @0cc4m
-/ggml/src/ggml-zdnn/ @taronaeo @AlekseiNikiforovIBM
+/ggml/src/ggml-zdnn/ @taronaeo @Andreas-Krebbel @AlekseiNikiforovIBM
/ggml/src/ggml.c @ggerganov @slaren
/ggml/src/ggml.cpp @ggerganov @slaren
/ggml/src/gguf.cpp @JohannesGaessler @Green-Sky