Increase wait time for wait_for_server

[AlvaroBrey]

This script waits for the server to wake up during CI before launching tests.
In this library it only waited for 100 seconds instead of the 500 seconds it waits in the Files app.

This caused "failed to wait for server" in some occasions where the server image needs to be downloaded
and there's slow internet or poor performance.

[github-actions]

SpotBugs (new)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141

SpotBugs (master)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141

[github-actions]

SpotBugs (new)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141

SpotBugs (master)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141