QueryBackPressureTest regularly times out on GHA

[FlorianHockmann]

Flaky Test

• Test Name: org.janusgraph.diskstorage.util.backpressure.QueryBackPressureTest
• Link: https://github.com/JanusGraph/janusgraph/blob/e95578388919af6749b6a5e81f850de08c846b2d/janusgraph-core/src/test/java/org/janusgraph/diskstorage/util/backpressure/QueryBackPressureTest.java#L27
• Branch: v1.0
• Notes: There is no test failure, but the tests don't terminate. GH Action instead cancels the run after 6h. I don't know which test in this class is responsible for the problem or why this started becoming a problem only recently since the test class hasn't been changed since its addition in May 2023.

cc @porunov

Stack Trace

[INFO] Running org.janusgraph.diskstorage.util.CompletableFutureUtilTest
[INFO] Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.136 s - in org.janusgraph.diskstorage.util.CompletableFutureUtilTest
[INFO] Running org.janusgraph.diskstorage.util.backpressure.QueryBackPressureTest
Error: The operation was canceled.