stubs: increase timeout for patchwork stub to start
stubs: increase timeout for patchwork stub to start

For some reason I was suddenly having problems to execute tests. It seems to be
because patchwork stub takes longer to start than before and increasing the
timeout solved it.

Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@codeaurora.org>

kvalo/pwcli,kvalo/pwcli