smoke: increase the test timeout

[Saviq]

Slower devices (RPi3) did not keep up reliably.

[Saviq]

I can reproduce this within a dozen runs:

[2024-12-18 20:37:57.766490] < -warning- > server_example_test_client.cpp: Client has not exited: Terminating client
[2024-12-18 20:37:57.766987] <information> mirserver: Stopping
I: [FAILED] /snap/mir-test-tools/16552/usr/bin/mir_demo_client_wayland

And with the increased timeout, have not seen it yet.

[Saviq]

OTOH looking at a successful run:

[2024-12-19 13:00:35.271364] <information> mir::examples: Starting test client: /snap/mir-test-tools/17540/usr/bin/mir_demo_client_wayland
# ...
[2024-12-19 13:00:38.371156] <information> server_example_test_client.cpp: Client exited successfully

vs. a failed one:

[2024-12-19 13:00:53.416569] <information> mir::examples: Starting test client: /snap/mir-test-tools/17540/usr/bin/mir_demo_client_wayland
# ...
[2024-12-19 13:01:06.421952] < -warning- > server_example_test_client.cpp: Client has not exited: Terminating client

That's 3s vs. 13s…

[AlanGriffiths]

Sure