Pin autopep8

Author: krassowski

requirements/github-actions.yml

@@ -11,6 +11,8 @@ dependencies:
   - nodejs {nodejs}
   # for python language server (and development)
   - flake8 >=3.5
+  # temporarily pin autopep8
+  - autopep8 <1.6.0
   # for R language server and kernel
   # TODO: try r 4.0 soon
   - r <4