tests/resources: Fix mypy 0.800 errors
Fix new errors appeared since mypy 0.800 release in a Python file used by the cypress tests to check code highlighting.
Migrated from D4952 (view on Phabricator)
Staging instance, all changes can be removed at any time
Fix new errors appeared since mypy 0.800 release in a Python file used by the cypress tests to check code highlighting.
Migrated from D4952 (view on Phabricator)