Add dependency FlagEmbedding (#3980)

Signed-off-by: Alicia <115451386+congw729@users.noreply.github.com>

pyproject.toml

@@ -64,7 +64,8 @@ dev = [
     "lpips>=0.1.4", # for quantization fp8
     "orjson>=3.11.7", # to make v1/embeddings API fast
     "voxcpm>=2.0.2", # for VoxCPM2 path-locating in tests
-    "torchdiffeq>=0.2.5" # for covo_audio Test
+    "torchdiffeq>=0.2.5", # for covo_audio Test
+    "FlagEmbedding" # for hunyuan_image3 tests
 ]
 
 demo = [