Add missing TaskExecutorResource to jmx

[JRemitz]

Description

This is an attempt to fix #22905 which after #18118 the TaskExecutor class is moved to an abstract implementation with the detail used is now in the TimeSharingTaskExecutor class. The intention of this PR is to add this class into the exposed jmx mbean.

Also, the TaskExecutor is exposed in the mbean with empty metrics so I've removed that as well. I'm unclear if ThreadPerDriverTaskExecutor should have any jmx metrics as an alternative TaskExecutor, but since JMX wasn't referenced, I didn't include that in the if block.

Additional context and related issues

I did notice that beans are now also prefixed with jmx.trino... in the domains. Is that intended? Previous model was just trino.... I may be mistaken but this is how they're surfaced in Datadog if I include the additional timesharing metrics from MultilevelSplitQueue which are exposed in mbean.
EDIT: I've confused myself. That alias is done via the Datadog Trino integration. I'll also look into updating that as well.

Nothing additional to add here except that I don't know if this does everything I'm intending to. Just trying to push it along!

Release notes

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Add

# Section
* Add JMX metrics for the bean, `trino.execution.executor.timesharing:name=TimeSharingTaskExecutor`.  This replaces metrics previously found in `trino.execution.executor:name=TaskExecutor`

[cla-bot]

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[cla-bot]

Thank you for your pull request and welcome to the Trino community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. Continue to work with us on the review and improvements in this PR, and submit the signed CLA to [email protected]. Photos, scans, or digitally-signed PDF files are all suitable. Processing may take a few days. The CLA needs to be on file before we merge your changes. For more information, see https://github.com/trinodb/cla

[hashhar]

@martint PTAL.

[martint]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[wwbbcjeyc]

After upgrading to v460 JMX beam can't find 'trino. Execution. Executor. Timesharing: name = TimeSharingTaskExecutor' @JRemitz