jenkinsfile: Provide longer timeout for KBFS tests with -race
jenkinsfile: Provide longer timeout for KBFS tests with -race

keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client