[TestFix] change LoRA tests to use NVIDIA adapter instead of Nutanix (#19642)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

python/sglang/test/lora_utils.py

@@ -68,7 +68,7 @@ ALL_OTHER_LORA_MODELS = [
         base="meta-llama/Llama-3.1-8B-Instruct",
         adaptors=[
             LoRAAdaptor(
-                name="Nutanix/Meta-Llama-3.1-8B-Instruct_lora_4_alpha_16",
+                name="nvidia/llama-3.1-nemoguard-8b-topic-control",
                 prefill_tolerance=1e-1,
             ),
         ],
@@ -109,7 +109,7 @@ ALL_OTHER_MULTI_LORA_MODELS = [
                 prefill_tolerance=1e-1,
             ),
             LoRAAdaptor(
-                name="Nutanix/Meta-Llama-3.1-8B-Instruct_lora_4_alpha_16",
+                name="nvidia/llama-3.1-nemoguard-8b-topic-control",
                 prefill_tolerance=1e-1,
             ),
         ],