Upgrade com.google.auth:google-auth-library-oauth2-http to 0.11.0

This will fix this convergence issue by upgrading com.google.http-client:google-http-client to 1.24.1

```
+-com.google.cloud:zero-pom-test:0.0.1-SNAPSHOT
  +-com.google.cloud:google-cloud-storage:1.41.0
    +-com.google.cloud:google-cloud-core-http:1.41.0
      +-com.google.auth:google-auth-library-oauth2-http:0.10.0
        +-com.google.http-client:google-http-client:1.19.0
and
```