Fix logrusWrapper shrink interfaces slice into an interface

[wuYin]

Issue

logrusWrapper formatter shrank []interface{} args into an interface{}, cause logrus formatter missing arguments.

Format case

ls.log.Debugf("Successfully looked up topic{%s} on broker. %s / %s - Use proxy: %t",
               topic, lr.GetBrokerServiceUrl(), lr.GetBrokerServiceUrlTls(), lr.GetProxyThroughServiceUrl())

Logging looks like:

DEBU[0000] Successfully looked up topic{[persistent://public/default/topic-1 pulsar://localhost:6651  %!s(bool=false)]} on broker. %!s(MISSING) / %!s(MISSING) - Use proxy: %!t(MISSING)  serviceURL="pulsar://localhost:6650"

Modifications

Expand []interface{} before invoke logrus logger, pass them to logrus intact.

Verifying this change

• Make sure that the change passes the CI checks.

[wolfstudy]

LGTM +1

[wolfstudy]

ping @merlimat PTAL thanks