## Is your feature request related to a problem?

We manage around 20 3rd party tools that our internal users can log into using G Suite (part of your enterprise / scale offering). When a user leaves, we need to disable their account. Currently we need to do this in G Suite and then any of the 3rd party tools where password login is still possible.

## Describe the solution you'd like

When a user leaves, we disable their account in G Suite and their account in PostHog becomes disabled too. Essentially, the ability to restrict specific users in PostHog to only be able to login via SSO (defaulting to this setting).

## Describe alternatives you've considered

Manually removing their account, and being the enemy of our IT manager.

## Additional context



#### *Thank you* for your feature request – we love each and every one!

posthog/api/test/test_authentication.py
CONFIG_AUTO_LOGIN = False
    @patch("posthoganalytics.capture")
    def test_user_logs_in_with_email_and_password(self, mock_capture):
        response = self.client.post("/api/login", {"email": self.CONFIG_EMAIL, "password": self.CONFIG_PASSWORD})
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.assertEqual(response.json(), {"success": True})
        
        response = self.client.get("/api/users/@me/")
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        self.assertEqual(response.json()["email"], self.user.email)
        
        mock_capture.assert_called_once_with(
            self.user.distinct_id,
            "user logged in",
            properties={"social_provider": ""},
            groups={"instance": ANY, "organization": str(self.team.organization_id), "project": str(self.team.uuid),},
        )
    @patch("posthoganalytics.capture")
    def test_user_cant_login_with_incorrect_password(self, mock_capture):