[Chore] Separate out vllm.utils.importlib (#27022)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/v1/engine/core.py

@@ -32,10 +32,10 @@ from vllm.utils import (
     decorate_logs,
     get_hash_fn_by_name,
     make_zmq_socket,
-    resolve_obj_by_qualname,
     set_process_title,
 )
 from vllm.utils.gc_utils import maybe_attach_gc_debug_callback
+from vllm.utils.import_utils import resolve_obj_by_qualname
 from vllm.v1.core.kv_cache_utils import (
     BlockHash,
     generate_scheduler_kv_cache_config,