test: verification on provider's OAI endpoints (#1893)

# What does this PR do?


## Test Plan
export MODEL=accounts/fireworks/models/llama4-scout-instruct-basic;
LLAMA_STACK_CONFIG=verification pytest -s -v tests/integration/inference
--vision-model $MODEL --text-model $MODEL

llama_stack/providers/remote/inference/groq/models.py

@@ -35,4 +35,12 @@ MODEL_ENTRIES = [
         "groq/llama-3.2-3b-preview",
         CoreModelId.llama3_2_3b_instruct.value,
     ),
+    build_hf_repo_model_entry(
+        "groq/llama-4-scout-17b-16e-instruct",
+        CoreModelId.llama4_scout_17b_16e_instruct.value,
+    ),
+    build_hf_repo_model_entry(
+        "groq/llama-4-maverick-17b-128e-instruct",
+        CoreModelId.llama4_maverick_17b_128e_instruct.value,
+    ),
 ]