tbb::task_scheduler_init is deprecated

[makortel]

We currently use tbb::task_scheduler_init to set the total number of threads, but that is deprecated and we should look how to replace is. The tbb::global_control looks like the likely replacement.

[makortel]

assign core

[cmsbuild]

New categories assigned: core

@Dr15Jones,@smuzaffar,@makortel you have been requested to review this Pull request/Issue and eventually sign? Thanks

[cmsbuild]

A new Issue was created by @makortel Matti Kortelainen.

@Dr15Jones, @silviodonato, @dpiparo, @smuzaffar, @makortel can you please review it and eventually sign/assign? Thanks.

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[makortel]

+1

Done in #31313

[cmsbuild]

This issue is fully signed and ready to be closed.