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 sha256:6908fb27a4399993bb8ba805aea51d0d085f6dacfa3c371be4ece886b0c47add
-size 661727272
+oid sha256:6045ab6ab20a7a84f6ba420d54ea32085a2ebd5df8d5bd66ab7bcb57a1b569ae
+size 344137168

onnx/decoder_model_merged_q4f16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6b3caca55e568d2e3154b5d52782edfbf7a61b1e3e59f837e065fd0e195538c4
-size 379115399
+oid sha256:c79b0d9e7daa61534c0689d7580b7515f23fda34d18edb9906abbc675dba3752
+size 193402631