Dataflow sets CPU limits on docker containers near zero so Java 11 only detects 1 CPU

When specifying the worker-type as "n1-highcpu-4" the resulting thread number is 4 when the pipeline is compiled by Java8, and only 1 when the pipeline is compiled by Java11.

Specifying numberOfWorkerHarnessThreads does not change amount of detected threads.

Amount of available CPUs is received via "Runtime.getRuntime().availableProcessors()"