[AMD] Add AMD CI registration (1-gpu unit test) to nightly CI. (#16941)

test/registered/bench_fn/test_bench_serving_functionality.py

@@ -8,7 +8,7 @@ from pathlib import Path
 
 from sglang.bench_serving import parse_custom_headers, run_benchmark
 from sglang.srt.utils import kill_process_tree
-from sglang.test.ci.ci_register import register_cuda_ci
+from sglang.test.ci.ci_register import register_amd_ci, register_cuda_ci
 from sglang.test.test_utils import (
     DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
     DEFAULT_URL_FOR_TEST,
@@ -18,6 +18,7 @@ from sglang.test.test_utils import (
 )
 
 register_cuda_ci(est_time=300, suite="nightly-1-gpu", nightly=True)
+register_amd_ci(est_time=300, suite="nightly-amd-1-gpu", nightly=True)
 
 MODEL = "Qwen/Qwen3-0.6B"
 NUM_CONVERSATIONS, NUM_TURNS = 4, 3