Enable embedding retriever stack on the Space

requirements.txt

@@ -25,8 +25,8 @@ spaces>=0.25.0
 # (benchmarks.retriever.backend=embedding) and live GPU repair escalations
 # (repair.execute_gpu_escalations=true). Both are off by default.
 #
-# transformers>=4.45.0,<6.0.0
-# sentence-transformers>=3.0.0,<4.0.0
+transformers>=4.45.0,<6.0.0
+sentence-transformers>=3.0.0,<4.0.0
 
 # Optional external parser CLIs. Each adds a non-trivial install footprint;
 # enable only the ones the Space hardware can support. Adapter shells out to