Error when executing data.elasticsearch data provider

[traut]

Description

Error when trying to fetch data using elasticsearch data provider

Environment

Fabric version: v0.4.2-rc3
Plugin version: elastic, v0.4.2-rc3
Operating System: macOS

Steps to Reproduce

For the template

config data elasticsearch {
   cloud_id = "CLOUD-ID"
   api_key_str = "STR"
}

document "simple_alerts_overview" {
  data elasticsearch "alerts" {
    index = ".alerts-security.alerts-default"
    query_string = "@timestamp:[now-7d TO now]"
    size = 10000
  }
}

data command fails:

$ fabric data document.simple_alerts_overview.data.elasticsearch.alerts
Jun 18 13:47:18.265 INF Parsing fabric files command=data
Jun 18 13:47:18.275 INF Loading plugin resolver command=data includeRemote=false
Jun 18 13:47:18.276 INF Loading plugin runner command=data
Jun 18 13:47:18.310 INF Loading plugin command=data component=runner name=blackstork/elastic path=.fabric/plugins/blackstork/elastic@0.4.2-rc3
Jun 18 13:47:18.320 INF Loading plugin command=data component=runner name=blackstork/openai path=.fabric/plugins/blackstork/openai@0.4.2-rc3
Jun 18 13:47:18.328 INF Fetching data command=data target=document.simple_alerts_overview.data.elasticsearch.alerts
Jun 18 13:47:18.328 INF Loading document data command=data document=simple_alerts_overview datasource=elasticsearch name=alerts
Error: Failed to fetch data

rpc error: code = InvalidArgument desc = failed to decode config: unsupported cty type: string

$ fabric data document.simple_alerts_overview.data.elasticsearch.alerts --verbose
...
[13:47:31] @@@ github.com/blackstork-io/fabric/engine/engine.go:287
 INFO  Loading document data
  document  : simple_alerts_overview
  datasource: elasticsearch
  name      : alerts
  command   : data
[13:47:31] @@@ github.com/blackstork-io/fabric/plugin/logging.go:81
 DEBUG  Executing datasource
G params   : ============
    plugin    : blackstork/elastic
    datasource: elasticsearch
  G config    : ============
    ! base_url           : <nil>
    * cloud_id           : CLOUD-ID
      api_key_str        : <secret>
    ! api_key            : <nil>
    ! basic_auth_username: <nil>
    ! basic_auth_password: <nil>
    ! bearer_auth        : <nil>
    ! ca_certs           : <nil>
  G args      : ============
      index       : .alerts-security.alerts-default
    ! id          : <nil>
      query_string: @timestamp:[now-7d TO now]
    ! query       : <nil>
    ! aggs        : <nil>
    ! only_hits   : <nil>
    ! fields      : <nil>
    # size        : 10000
  component: plugin
  component: runner
  command  : data
[13:47:31] @@@ github.com/blackstork-io/fabric/plugin/pluginapi/v1/plugin.go:127
 DEBUG  Calling data source
  name     : elasticsearch
  component: runner
  command  : data
[13:47:31] @@@ github.com/blackstork-io/fabric/plugin/pluginapi/v1/plugin.go:129
 DEBUG  Called data source
  name     : elasticsearch
@ took     : 345.708µs
  component: runner
  command  : data
Error: Failed to fetch data

rpc error: code = InvalidArgument desc = failed to decode config: unsupported cty type: string

[traut]

fixed in #209