Parameters are not being passed when used with remote 'rpc-addr'

**Given**
`$ cat test.hcl`
```hcl
param "username" {
  default = "user"
}

task.query "test-env" {
  query = "echo {{param `username`}}"
}
```

**Run**
`converge plan --rpc-addr xxx:4774 --rpc-token xxx --params username=administrator test.hcl`

**Result**
`user` - not what expected