textproc/py-python-lsp-server: Update to 1.3.1

Changelogs: https://github.com/python-lsp/python-lsp-server/blob/develop/CHANGELOG.md#version-131-2021-11-22,
https://github.com/python-lsp/python-lsp-server/blob/develop/CHANGELOG.md#version-130-2021-11-22

Reported by: portlint