Add SSO checks before using auth information

General MR

Summary

Fixes an issue that appears when overriding the cr to include the auth type for openid and not turning on sso.

kiali:
  enabled: true
  values:
    cr:
      spec:
        auth:
          strategy: "openid"

This caused downstream resources to assume that values existed, when they did not due to sso being disabled.

Relevant logs/screenshots

Log Error

message: 'Helm install failed for release kiali/kiali-kiali with chart kiali@1.89.0-bb.0: template: kiali/templates/bigbang/ssoServiceEntry.yaml:7:50: executing "kiali/templates/bigbang/ssoServiceEntry.yaml" at <.Values.cr.spec.auth.openid.issuer_uri>: nil pointer evaluating interface {}.issuer_uri'

Linked Issue

No issue linked. Found as part of testing changes related to this issue in Nexus Repository Manager.

Upgrade Notices

N/A