Description of problem:
The ClusterLogForwarder API couldn't resolve the IP5 Address. For example ->   url: '[fd02::ee1d]:24224'. the 

#ClusterLogForwarder/instance
spec:
  outputs:
  - name: fluentd-created-by-user
    type: fluentdForward
    url: '[fd02::ee1d]:24224'
  pipelines:  

#fluent.conf

<label @FLUENTD_CREATED_BY_USER>
  <match **>
    @type forward
    <buffer>
      @type file
      path '/var/lib/fluentd/fluentd_created_by_user'
      queued_chunks_limit_size "#{ENV['BUFFER_QUEUE_LIMIT'] || '1024' }"
      <--snip---->
      overflow_action block
    </buffer>
    
    <server>
      host [fd02
      port 
    </server>
  </match>
</label>



Version-Release number of selected component (if applicable):
4.6

How reproducible:
Always

Steps to Reproduce:
1. Use IPv6 Address in URL  
#ClusterLogForwarder/instance
spec:
  outputs:
  - name: fluentd-created-by-user
    type: fluentdForward
    url: '[fd02::ee1d]:24224'
  pipelines:  


Actual Result:

The ClusterLogForwarder API transfer '[fd02::ee1d]:24224' to '[fd02'.
    <server>
      host [fd02
      port 
    </server>