Upload fixed & optimized fp16/q4f16 ONNX weights

onnx/decoder_model_merged_fp16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1eabb33d307b641cd8f817464fdeddc83c50059139eca25d95017b026f8d24bc
-size 661764234
+oid sha256:e665de99a4a6312bb552be278e6a7b6bd5aae60a9c056bb93743beec20c2e25c
+size 344140718

onnx/decoder_model_merged_q4f16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:231219a8e1b553a86dfecd12f43ef624f67937ef86b03a27bbdc19790eebe545
-size 379152361
+oid sha256:f597400db67c1d6c708e6bf57024b140b74be18660d55057cbabb992a6266968
+size 193439002