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
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+oid sha256:fdf10afca73a0c7bf87286cfb96cf7028a9edbc9bb02512509a526f95b126c9d
+size 344227339

onnx/decoder_model_merged_q4f16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a865004e064a40749c437e4b2cb86334c8b5c752f8b3a2d0e31a1b83952c5423
-size 379215628
+oid sha256:45981cdd958a4c8e1447839850d2e6e27e30974ccbe31b4a1e5ebe9ad8965a5f
+size 193505017