test: split Qwen3 Next tests and disable PCG tests due to intermittent failures (#16989)

test/srt/run_suite.py

@@ -9,7 +9,8 @@ from sglang.test.ci.ci_utils import TestFile, run_unittest_files
 # NOTE: please sort the test cases alphabetically by the test file name
 suites = {
     "per-commit-4-gpu": [
-        TestFile("models/test_qwen3_next_models.py", 650),
+        TestFile("models/test_qwen3_next_models.py", 350),
+        TestFile("models/test_qwen3_next_models_mtp.py", 500),
         TestFile("test_gpt_oss_4gpu.py", 300),
         TestFile("test_multi_instance_release_memory_occupation.py", 64),
         TestFile("test_pp_single_node.py", 500),
@@ -70,6 +71,9 @@ suites = {
         TestFile("test_mistral_large3_basic.py"),
         TestFile("test_prefill_delayer.py"),
         TestFile("test_fla_layernorm_guard.py"),
+        TestFile(
+            "models/test_qwen3_next_models_pcg.py"
+        ),  # Disabled: intermittent failures, see #17039
     ],
 }