Update astroid from 2.3.3 to 2.4.1 (#1457)
Update astroid from 2.3.3 to 2.4.1 (#1457)

Co-authored-by: Fábio Rosado <504d498c4e6912c88badf931727242f17b94f32f@gmail.com>
opsdroid/opsdroid,jacobtomlinson/opsdroid,FabioRosado/opsdroid