Increase timeouts in test_asyncprocess::test_simple

[fjetter]

This test flaked over in #6991

The functionality appeared to be OK but the process join took ~6 seconds which tripped the assert dt <= 1.0. I simply increased all timeouts a bit

[fjetter]

ubu 310 failure due to a conda network problem

[fjetter]

cc @dask/gpu gpuCI is failing for some reason. I doubt this is connected to this PR. Details don't show any info so maybe this can be ignored

[github-actions]

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

       15 files  ±    0         15 suites  ±0   6h 32m 33s ⏱️ + 13m 33s
  3 082 tests ±    0    2 998 ✔️ +    2       84 💤  -   1  0 ❌  - 1 
23 423 runs  +621  22 356 ✔️ +537  1 067 💤 +85  0 ❌  - 1 

Results for commit 891556a. ± Comparison against base commit acf6078.

[pentschev]

Looks like a hiccup, it seems it didn't even start.

[pentschev]

rerun tests

[pentschev]

gpuCI is green now.

@fjetter if this happens again in the future, I think you also have permission to do rerun gpuCI by commenting the same as I did in #6992 (comment) (purposely avoiding to say that sentence here again to avoid it running once more).

[fjetter]

I think you also have permission to do rerun gpuCI by commenting the same as I did

sure, will do