param order_by=version doesn't sort correctly

[jerabekjiri]

AAH issue: AAH-2581

Version

"server_version":"4.8.0dev"
"galaxy_ng_version":"4.8.0dev"
galaxy_ng_commit":"origin/master:a314e11"
"galaxy_importer_version":"0.4.10"
"pulp_core_version":"3.23.4"
"pulp_ansible_version":"0.17.2"
"pulp_container_version":"2.14.5"

Describe the bug
The order_by=-version param isn't working as expected on x-repo search, so the ui is getting the whole list and 1.7.3 shows up first and it's just marking it "latest".

pulp=> SELECT version FROM ansible_collectionversion ORDER BY version DESC;
 version
---------
 1.7.3
 1.21.2
 1.21.1
 1.21.0
 1.20.0
 1.19.3
 1.16.2
 1.15.1
 1.12.1
 1.0.1
 1.0.0
(11 rows)

To Reproduce
Go to the rhel_system roles collection main page: https://console.redhat.com/ansible/automation-hub/repo/published/redhat/rhel_system_roles/

Click on the collection version drop down, and the collection showing "(latest)" is the v1.7.3 version, not the actual latest, v1.21.1.

The list comes from the URL: https://console.redhat.com/api/automation-hub/v3/plugin/ansible/search/collection-versions/?repository_name=published&namespace=redhat&name=rhel_system_roles&order_by=-version&offset=0&limit=10

Expected behavior
Semantic versions should be sorted in the correct order.