OMR should return oauth token when Quay installation is succeeded

Description of problem:

OMR should return oauth token when Quay installation is succeeded. We know the api '/api/v1/user/initialize' could return an access token. Customer may need it to call API.

Version-Release number of selected component (if applicable):

registry-proxy.engineering.redhat.com/rh-osbs/openshift-openshift-mirror-registry-rhel8@sha256:f52c411422efdf26bc8b7dedc70977bb7dc1e699c1668a8a68436ed2a4d91d38',
                              'registry-proxy.engineering.redhat.com/rh-osbs/openshift-openshift-mirror-registry-rhel8:v1.0-3

How reproducible:

always

Steps to Reproduce:
1. # ./openshift-mirror-registry install
2. Check output after installation completed

Actual results:

It only returns username and password

Expected results:

Should return oauth token as well

Additional info: