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 sha256:5360de02551bb03724833c1bfd2d4ccecb95714be13a20badf3fc0899592d898
-size 202176745
+oid sha256:eef70e3c54b667a65bba47e0926ac64a4215226a3050e05e482f9768c220c232
+size 104471866

onnx/decoder_model_merged_q4f16.onnx

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f9a0c6f1d4323f5bc4ccdc3aad9014c38749d3cc3052637cf4218057a49aec00
-size 134365196
+oid sha256:b3d50e22e897372b59530c060331f60c02f1c7fd5044304f2255d42225d4ccd1
+size 68294656