[Deprecation][2/N] Replace --task with --runner and --convert (#21470)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

tests/entrypoints/openai/test_pooling.py

@@ -20,8 +20,8 @@ DUMMY_CHAT_TEMPLATE = """{% for message in messages %}{{message['role'] + ': ' +
 @pytest.fixture(scope="module")
 def server():
     args = [
-        "--task",
-        "reward",
+        "--runner",
+        "pooling",
         # use half precision for speed and memory savings in CI environment
         "--dtype",
         "bfloat16",