docs: rename type to kind

@isolated(type="virtualenv")
def hello():
    return "str"

gives the following error:

➜  fal-events git:(main) ✗ python try.py
Traceback (most recent call last):
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/fal_serverless/api.py", line 188, in handler
    return fn(*args, **kwargs)
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/fal_serverless/api.py", line 304, in run
    for partial_result in self._connection.run(
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/fal_serverless/sdk.py", line 424, in run
    for partial_result in self.stub.Run(request):
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/grpc/_channel.py", line 426, in __next__
    return self._next()
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/grpc/_channel.py", line 826, in _next
    raise self
grpc._channel._MultiThreadedRendezvous: <_MultiThreadedRendezvous of RPC that terminated with:
        status = StatusCode.UNKNOWN
        details = "Unexpected <class 'TypeError'>: __init__() got an unexpected keyword argument 'type'"
        debug_error_string = "UNKNOWN:Error received from peer ipv4:130.211.36.43:443 {grpc_message:"Unexpected <class \'TypeError\'>: __init__() got an unexpected keyword argument \'type\'", grpc_status:2, created_time:"2023-04-25T16:51:05.292464+09:00"}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/gorkemyurtseven/dev/fal-events/try.py", line 9, in <module>
    hello()
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/fal_serverless/api.py", line 428, in __call__
    return self.host.run(
  File "/Users/gorkemyurtseven/.pyenv/versions/3.10.8/lib/python3.10/site-packages/fal_serverless/api.py", line 208, in handler
    raise FalServerlessError(e.details())
fal_serverless.api.FalServerlessError: Unexpected <class 'TypeError'>: __init__() got an unexpected keyword argument 'type'

fal-ai / dbt-fal

docs: rename type to kind #831