[auto] Update webassets in master (#6135)
[auto] Update webassets in master (#6135)

4d6b434 terminal: check whether the browser supports U2F (#249) https://github.com/gravitational/webapps/commit/4d6b434

[source: -w master] [target: -t master]
gravitational/teleport,gravitational/teleport,gravitational/teleport,gravitational/teleport,gravitational/teleport,gravitational/teleport