Defer authentication until actually required
This PR moves the call to HTTPECPAuth._init_auth to the point where it is actually required, rather than forcing users to authenticate when they might not need to.
Maintenance will be performed on git.ligo.org, containers.ligo.org, and docs.ligo.org on Tuesday 16 December 2025 starting at approximately 900 MST (1600 UTC). It is expected to take around 30 minutes and there will be several periods of downtime throughout the maintenance. Please address any comments, concerns, or questions to the helpdesk.
This PR moves the call to HTTPECPAuth._init_auth to the point where it is actually required, rather than forcing users to authenticate when they might not need to.