tests: increase api timeouts from 100 to 300ms
tests: increase api timeouts from 100 to 300ms

Signed-off-by: Dan Lemmond <478c2d442108b8b899e3b5233b780da53fb9fed0@gmail.com>

firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker