Nudge karma to 3.1.2
Nudge karma to 3.1.2

This includes a fix for detecting the version of Chrome used to run tests.

matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk