fix(test-runner): cap webServer availability probe timeout to 1s

[devareddy05]

Summary

Cap each pre-launch webServer availability probe at 1s so we no longer hang on the OS-default TCP connect timeout (~2 min) when SYNs are silently dropped — notably on WSL mirrored networking where Windows Defender Firewall drops packets to closed loopback ports.

• isPortUsed(): explicit socket.setTimeout(), treat timeout like a connection error.
• httpStatusCode(): wrap the request with a timer that calls cancel(). A request-level setTimeout is not enough — Happy Eyeballs only assigns a socket to the request once one address connects, so until then there is no socket for the request-level timeout to attach to.
• Added regression test that stands up a TCP peer which accepts SYNs but never replies; without the fix the probe hangs indefinitely.

Fixes #40430

[devareddy05]

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[Skn0tt]

closed in favour of #40458