Fix MC_ env prefix comment

Signed-off-by: William Arnold <[email protected]>

Author: Aphoh

components/src/dynamo/common/config_dump/environment.py

@@ -14,7 +14,7 @@
     "TRANSFORMERS_",  # Transformers library
     "SGLANG_",  # SGLang
     "SGL_",  # SGLang (short prefix)
-    "MC_",  # Model Cache or other MC-related
+    "MC_",  # Mooncake
     "VLLM_",  # vLLM
     "TENSORRT_",  # TensorRT
     "TORCH_",  # PyTorch