tests: bypass the proxy if testing timeouts #2349
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If an explicit proxy is configured in the environment, the timeout tests will actually go through it, and then the test results will depend on the proxy's performance, which can vary.
Testing this is very simple:
We're hitting this issue in the Ubuntu CI. Further investigations after 892569e seemed to point that sometimes, the proxy would be too slow (particularly on non amd64 architectures), leading to the tests to actually timeout and pass.