Unexpected exception while reading configuration with git packages

[definitio]

Extension doesn't work when config includes packages from a git repository.
Config example:

packages:
  remote_package:
    url: https://github.com/esphome/non-existant-repo
    files: [base.yaml]

Notification:

�[31mERROR Unexpected exception while reading configuration:�[0m

Log:

Validating file:///<path_to_file>/config.yaml
Unexpected data too small: 
'