Make v1 filter for owner__username case insensitive

[jctanner]

No description provided.

[jctanner]

2023-09-11T17:22:29.8465151Z �[35mproxy_1         |�[0m Setting X-RH-IDENTITY: {"identity":{"account_number":6089719,"user":{"username":"jdoe","first_name":"john","last_name":"doe","email":"[email protected]","is_org_admin":false}},"entitlements":{"insights":{"is_entitled":true,"is_trial":false}}}
2023-09-11T17:22:29.8465333Z �[35mproxy_1         |�[0m req.Host: localhost:38080
2023-09-11T17:22:29.8465485Z �[35mproxy_1         |�[0m req.URL.Host: 
2023-09-11T17:22:29.8465642Z �[35mproxy_1         |�[0m req.URL.Scheme: 
2023-09-11T17:22:29.8466792Z �[35mproxy_1         |�[0m req.URL.Path: /api/automation-hub/v3/artifacts/collections/
2023-09-11T17:22:29.8467044Z �[35mproxy_1         |�[0m urlToProxyTo.Host: pulp:55001
2023-09-11T17:22:29.8467218Z �[35mproxy_1         |�[0m urlToProxyTo.Scheme: http
2023-09-11T17:22:29.8468292Z �[35mproxy_1         |�[0m Proxying request to: /api/automation-hub/v3/artifacts/collections/
2023-09-11T17:22:29.8468500Z �[35mproxy_1         |�[0m Retry attempt 1: write broken pipe
2023-09-11T17:22:29.8468702Z �[35mproxy_1         |�[0m Retry attempt 2: invalid read on closed body
2023-09-11T17:22:29.8469080Z �[35mproxy_1         |�[0m Retry attempt 3: invalid read on closed body
2023-09-11T17:22:29.8469221Z �[35mproxy_1         |�[0m error ...
2023-09-11T17:22:29.8469396Z �[35mproxy_1         |�[0m Exhausted all retry attempts