Upgrade kubectl-ng get to the new async syntax (#535)

examples/kubectl-ng/kubectl_ng/_get.py

@@ -10,6 +10,7 @@
 from rich.live import Live
 
 import kr8s
+from kr8s._async_utils import anext
 from kr8s.asyncio.objects import Table
 
 TIMESTAMP_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
@@ -49,11 +50,13 @@ async def draw_table(kind, response, resource_names):
 async def get_resources(resources, label_selector, field_selector):
     data = {}
     for kind in resources:
-        data[kind] = await kr8s.asyncio.get(
-            kind,
-            label_selector=label_selector,
-            field_selector=field_selector,
-            as_object=Table,
+        data[kind] = await anext(
+            kr8s.asyncio.get(
+                kind,
+                label_selector=label_selector,
+                field_selector=field_selector,
+                as_object=Table,
+            )
         )
     return data