gotosocial compatibility

[mirabilos]

--- a/feediverse.py
+++ b/feediverse.py
@@ -37,6 +37,7 @@ def main():
     config = read_config(config_file)
 
     masto = Mastodon(
+        version_check_mode="none",
         api_base_url=config['url'],
         client_id=config['client_id'],
         client_secret=config['client_secret'],

Note, this needs (possibly manual) backporting of some python3-mastodon commits from today as well.