Increase default expansion service timeout

[chamikaramj]

Seems like number of open source runner tests are flaky due to timeout here not being adequate. For example,

https://ci-beam.apache.org/job/beam_PostCommit_XVR_Direct/3670/testReport/org.apache.beam.sdk.extensions.python/PythonExternalTransformTest/trivialPythonTransform/

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[johnjcasey]

LGTM

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[chamikaramj]

Run Java PreCommit

[chamikaramj]

Run Java PreCommit

[chamikaramj]

Thanks!

[Abacn]

Noticed the same thing in #25111 actually the code path taking effect is here:

beam/sdks/java/extensions/python/src/main/java/org/apache/beam/sdk/extensions/python/PythonExternalTransform.java

Line 481 in 48712b2

PythonService.waitForPort("localhost", port, timeoutSeconds * 1000);

will create another PR for it

[Abacn]

opened #25176

[chamikaramj]

Yeah, correct. Makes sense to increase the timeout for all cases.