Fix long running test

[Philzen]

Depending on test exec environment, this test could linger around for ~8 minutes, b/c pinging test.com will not resolve and run into several timeouts.

Brings down CI time for Linux Suite from >10m to ~4m.

Before

Connections in this test time out with

java.net.ConnectException: Connection timed out: connect

After

Connection fails immediately with

java.net.ConnectException: Connection refused: connect

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[Philzen]

@wing328 Reviewers and contributors are going to like this :)

Unfortunately Windows and CircleCI checks are still far >10m, however this helps with time needed for local test suite execution.

[wing328]

nice. thanks for the PR.

for windows, we can improve that with another PR later.

[Philzen]

for windows, we can improve that with another PR later.

@wing328 i checked the actions' log, the test in question also fails quickly as expected there – however the total runtime of the windows actions is still high. Wondering how that could be optimized though.