Cluster Tasks are not sorted in pipeline builder

Description of problem:

Task selection dropdown in the pipeline builder contains unsorted list of items.

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Go to pipeline builder, click on the `Select Task` dropdown

Actual results:

Clustertask are not sorted.

Expected results:

clustertasks should be a sorted list.

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

4.6

Additional info: