Merge pull request #7920 from GeorgianaElena/fix-spot-instances

[ucmerced] Fix dask nodepools

Author: GeorgianaElena

eksctl/ucmerced.jsonnet

@@ -14,9 +14,11 @@ local c = cluster.makeCluster(
   ],
   daskInstanceTypes=[
     // Allow for a range of spot instance types
-    'r5.4xlarge',
-    'r7i.4xlarge',
-    'r6i.4xlarge',
+    [
+      'r5.4xlarge',
+      'r7i.4xlarge',
+      'r6i.4xlarge',
+    ],
   ],
   hubs=['staging', 'prod'],
   notebookGPUNodeGroups=[],