Collabora: restrict access to allowed uris

We can activate dynamicConfig to serve a config.json that contains hosts allowed.

collabora:                                                                                                
  extra_params: --o:ssl.enable=false --o:ssl.termination=true
  env:                              
    - name: remoteconfigurl
      value: https://dynconfig.test.eole3.dev/config/config.json
  username: admin         
  password: proute
                                                     
dynamicConfig:                
  enabled: true
  ingress:
    enabled: true
    className: nginx
    annotations: {}
    hosts:      
      - host: dynconfig.test.eole3.dev                                                                    
        paths:  
          - path: /
            pathType: Prefix      
    tls:  
    - hosts:      
      - dynconfig.test.eole3.dev
                                                     
  configuration: |-
    {                    
      "kind": "configuration",
      "storage": {
        "wopi": {
          "alias_groups": {          
            "mode": "groups",
            "groups": [
              { 
                "host": "https://nextcloud.test.eole3.dev",
                "allow": "true"
              }                                                                                           
            ]
          }
        }      
      }            
    }