Increase timeout for ProcessWaitingTests.WaitAsyncForSignal

[danmoseley]

This should fix this timeout

net6.0-Linux-Debug-x64-CoreCLR_release-Ubuntu.1804.Amd64.Open
System.Threading.Tasks.TaskCanceledException : A task was canceled.
Stack trace
   at System.Diagnostics.Process.WaitForExitAsync(CancellationToken cancellationToken) in /_/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs:line 1478
   at System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncForSignal() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessWaitingTests.cs:line 490
--- End of stack trace from previous location ---

I notice I already made this exact change on the test above, but the change that added this test probably started before that and finished after it so it never got the increased timeout.

All other timeouts in these tests seem reasonable.

And thus is demonstrated Dans First Law Of Running Tests In Helix -- never underestimate the possibility of hitting the longest tail of possibilities when you run tests sufficiently many times a day.

[ghost]

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Issue Details

---

This should fix this timeout

net6.0-Linux-Debug-x64-CoreCLR_release-Ubuntu.1804.Amd64.Open
System.Threading.Tasks.TaskCanceledException : A task was canceled.
Stack trace
   at System.Diagnostics.Process.WaitForExitAsync(CancellationToken cancellationToken) in /_/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs:line 1478
   at System.Diagnostics.Tests.ProcessWaitingTests.WaitAsyncForSignal() in /_/src/libraries/System.Diagnostics.Process/tests/ProcessWaitingTests.cs:line 490
--- End of stack trace from previous location ---

I notice I already made this exact change on the test above, but the change that added this test probably started before that and finished after it so it never got the increased timeout.

Author:	danmosemsft
Assignees:	-
Labels:	area-System.Diagnostics.Process
Milestone:	-

[danmoseley]

I should have just rolled this into the other PR...

[adamsitnik]

LGTM, thank you @danmosemsft !