Use Virtual Threads for both server and internal clients

[wendigo]

Description

Additional context and related issues

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## Section
* Fix some things. ({issue}`issuenumber`)

[sajjoseph]

For a moment I thought it was meant for Trino clients. How about adjusting the title to indicate that it is for internal communication?

[wendigo]

@sajjoseph we can't do that for clients yet but it's ok, majority of the traffic is internal communication

[starburstdata-automation]

Started benchmark workflow for this PR with test type = iceberg/sf1000_parquet_part.

Building Trino finished with status: success
Benchmark finished with status: success
Comparing results to the static baseline values, follow above workflow link for more details/logs.
Status message: NO Regression found.
Benchmark Comparison to the closest run from Master: Report

[starburstdata-automation]

Started benchmark workflow for this PR with test type = iceberg/sf1000_parquet_unpart.

Building Trino finished with status: success
Benchmark finished with status: failure
Comparing results to the static baseline values, follow above workflow link for more details/logs.
Status message: Found regressions for:<br/>(presto/tpch, q21, duration, over by 13.0%)
Benchmark Comparison to the closest run from Master: Report

[wendigo]

Throughput wise it looks good :)

[wendigo]

Iceberg looks good too:

[starburstdata-automation]

Started benchmark workflow for this PR with test type = hive/sf1000_parquet_unpart.

Building Trino finished with status: success
Benchmark finished with status: success
Comparing results to the static baseline values, follow above workflow link for more details/logs.
Status message: No baseline found.
Benchmark Comparison to the closest run from Master: Report

[starburstdata-automation]

Started benchmark workflow for this PR with test type = iceberg/sf1000_parquet_unpart.

Building Trino finished with status: success
Benchmark finished with status: failure
Comparing results to the static baseline values, follow above workflow link for more details/logs.
Status message: Found regressions for:<br/>(presto/tpch, q21, duration, over by 24.2%)
Benchmark Comparison to the closest run from Master: Report

[github-actions]

This pull request has gone a while without any activity. Ask for help on #core-dev on Trino slack.