Bumps the API and UI images from v3.6.5 to v3.7.3 so the au-syd1 cluster
picks up the recent fixes: local-repo files now appear in the cached-objects
UI, evicting a local RPM prunes its repodata metadata, and the bare domain
redirects to the web UI.
- api-deployment: artifactapi v3.6.5 -> v3.7.3
- ui-deployment: artifactapi-ui v3.6.5 -> v3.7.3