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 sha256:3790c216622cad5b906bb01e8b82d21b88c1e0c756dd083ef6e736f13a784dc5
-size 2518137
+oid sha256:1baaffade2a1476da8aeebbfe03bd1b7f538efd09c9ad1967d8ae61f685c1eea
+size 1815458706

onnx/decoder_model_merged_q4f16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:fb4ff19d4584948b1823a3a8aa57fe6973924c4a22bbe4fd0bd2729858343a43
-size 1157790536
+oid sha256:d36364b0bcc4f7db3ceea72e59018c28d67f105294a47436c954ea3f2b413055
+size 609597010