hack to run stateless ubsan sequentially

Author: strtgbb

tests/ci/ci_config.py

@@ -1176,7 +1176,7 @@ def validate(self) -> None:
         ),
         JobNames.STATELESS_TEST_UBSAN: TestConfig(
             Build.PACKAGE_UBSAN,
-            job_config=JobConfig(num_batches=2, **statless_test_common_params),  # type: ignore
+            job_config=JobConfig(num_batches=8, **statless_test_common_params),  # type: ignore
         ),
         JobNames.STATELESS_TEST_DEBUG: TestConfig(
             Build.PACKAGE_DEBUG,

tests/ci/functional_test_check.py

@@ -72,6 +72,9 @@ def get_run_command(
     additional_options = ["--hung-check"]
     additional_options.append("--print-time")
 
+    if "Stateless" in check_name and "ubsan" in check_name:
+        additional_options.append("--sequential=''")
+
     if tests_to_run:
         additional_options += tests_to_run