Remark: this might be the same issue as: https://github.com/localstack/localstack/issues/1055

There is some kind of error that is occurring when trying to run a lambda function using the invoke command from the javascript SDK. Not sure if I'm doing anything wrong. please advise. This works with a live lambda function.

Call from AWS SDK (Javascript)
```
const { source, identifier } = ctx.params;

const bodyBuffer = await requestToBuffer(ctx.request.req);
const bodyBase64 = bodyBuffer.toString('base64');

const payload = {
        pathParameters: {
            source,
            identifier,
        },
        isBase64Encoded: true,
        body: bodyBase64,
    };
const response = await lambda.invoke({
        FunctionName: 'arn:aws:lambda:us-east-1:000000000000:function:uploadAvatar',
        InvocationType: 'RequestResponse',
        Payload: JSON.stringify(payload),
    }).promise();
```

**Note**: I also tried just using uploadAvatar for the function name.

Error Stack Trace returned by Localstack

```
InternalFailure: Error executing Lambda function: [Errno 7] Argument list too long Traceback (most recent call last):
    File "/opt/code/localstack/localstack/services/awslambda/lambda_api.py", line 301, in run_lambda
      event, context=context, version=version, asynchronous=asynchronous)
    File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py", line 136, in execute
      result, log_output = self.run_lambda_executor(cmd, environment, asynchronous)
    File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py", line 58, in run_lambda_executor
      process = run(cmd, asynchronous=True, stderr=subprocess.PIPE, outfile=subprocess.PIPE, env_vars=env_vars)
    File "/opt/code/localstack/localstack/utils/common.py", line 666, in run
      return do_run(cmd)
    File "/opt/code/localstack/localstack/utils/common.py", line 656, in do_run
      stderr=stderr, stdout=stdout_arg, env=env_dict, cwd=cwd)
    File "/opt/code/localstack/.venv/lib/python2.7/site-packages/subprocess32.py", line 825, in __init__
      restore_signals, start_new_session)
    File "/opt/code/localstack/.venv/lib/python2.7/site-packages/subprocess32.py", line 1574, in _execute_child
      raise child_exception_type(errno_num, err_msg)
  OSError: [Errno 7] Argument list too long
```

Localstack configuration environment variables:
```
SERVICES=lambda,sns,s3,ses,cloudformation,cloudwatch,apigateway
DEFAULT_REGION=us-east-1
HOSTNAME=cloud
HOSTNAME_EXTERNAL=cloud.dev.leaguegamer.org
LOCALSTACK_HOSTNAME=cloud
USE_SSL=false
LAMBDA_EXECUTOR=docker
DATA_DIR=/tmp/localstack/data
PORT_WEB_UI=8080
LAMBDA_DOCKER_NETWORK=leaguegamer_default
```

This is running using the `localstack/localstack` docker image
cmd = [
            "node",
            "-e",
            f'const res = require("{main_file}").{function}({event_json_string},{context_json_string}); '
            f"const log = (rs) => console.log(JSON.stringify(rs)); "
            "res && res.then ? res.then(r => log(r)) : log(res)",
        ]
        LOG.info(cmd)
        result = self._execute_in_custom_runtime(cmd, lambda_function=lambda_function)
        return result
    def execute_go_lambda(self, event, context, main_file, lambda_function: LambdaFunction = None):
        if lambda_function:
            lambda_function.envvars["AWS_LAMBDA_FUNCTION_HANDLER"] = main_file
            lambda_function.envvars["AWS_LAMBDA_EVENT_BODY"] = json.dumps(json_safe(event))
        else:
            LOG.warning("Unable to get function details for local execution of Golang Lambda")
        go_installer = awslambda_go_runtime_package.get_installer()
        cmd = go_installer.get_executable_path()
        LOG.debug("Running Golang Lambda with runtime: %s", cmd)
        result = self._execute_in_custom_runtime(cmd, lambda_function=lambda_function)
        return result
    @staticmethod
    def set_default_env_variables():
        
        default_env_vars = {"AWS_DEFAULT_REGION": aws_stack.get_region()}
        env_vars_before = {var: os.environ.get(var) for var in default_env_vars}
        os.environ.update({k: v for k, v in default_env_vars.items() if not env_vars_before.get(k)})
        return env_vars_before
    @staticmethod
    def reset_default_env_variables(env_vars_before):