Change local-runner default mode to current user env

[mogith-pn]

Change the local-runner default env model to current user env, instead of creating a new venv.
Refer the code -

clarifai-python/clarifai/cli/model.py

Line 1154 in 212895c

@click.option(

During this PR , we have added 2 new modes like env and container with local-runner, prior to that it will be only running in the user env, where the cli command is triggered.

Now please make sure it has the previous functionality along with this 2 new modes to run.