[TextFields] Increase snapshot test timeout. (#6337)
[TextFields] Increase snapshot test timeout. (#6337)

Since they appear to be taking more than 5 minutes (including simulator
start-up) we can increase the timeout a bit and get them to complete
rather than failing entirely.
material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,material-components/material-components-ios