untimed invokeAny and invokeAll with virtual threads

[njr-11]

Untimed invokeAny and invokeAll with virtual=true.
Comments in the code indicated a desire to choose the behavior based on whether the submitting thread is virtual or not, which would have been a good idea, but unfortunately would have been a breaking change because users can already request invokeAny and invokeAll from virtual threads due to Liberty already supporting Java 21.
The next best thing we could do was to make the decision based on the virtual=true setting for the managed executor, which is not yet GA function. In cases where both are virtual, this will work great. But it will not optimize the case where a virtual thread invokes invokeAny or invokeAll to run on platform threads because changing the default for that would be a breaking change to existing behavior.

• I have considered the risk of behavior change or other zero migration impact (https://github.com/OpenLiberty/open-liberty/wiki/Behavior-Changes).
• If this PR fixes an Issue, the description includes "Fixes #FILLMEIN" or "Resolves #FILLMEIN" (verify release bug label if applicable: https://github.com/OpenLiberty/open-liberty/wiki/Open-Liberty-Conventions).
• If this PR resolves an external Known Issue (including APARS), the description includes "Fixes #FILLMEIN" or "Resolves #FILLMEIN".

[njr-11]

Note to reviewers: maxPolicy.loose.desc and maxPolicy.strict.desc were not changed. I only split the existing text onto multiple lines so that I could read them in a code editor without needing to keep scrolling back and forth. I also split up maxPolicy.desc for the same reason, but added some text to that one, so that is the one to review.

[njr-11]

#build

[LibbyBot]

Your personal pipeline request is at https://libh-proxy1.fyre.ibm.com/cognitive/pipelineAnalysis.html?uuid=ea9a359f-2e75-4998-9250-b8fee6d4415f

Target locations of links might be accessible only to IBM employees.

[LibbyBot]

Your personal build request is at https://wasrtc.hursley.ibm.com:9443/jazz/resource/itemOid/com.ibm.team.build.BuildResult/_P2cDIIJoEe-TieZHY4j0Qw

Target locations of links might be accessible only to IBM employees.

[dmuelle]

LGTM, thanks

[njr-11]

#build
#libby

[LibbyBot]

Your personal pipeline request is at https://libh-proxy1.fyre.ibm.com/cognitive/pipelineAnalysis.html?uuid=8ace4b69-eb91-4a70-935b-4e9faed05b42

Target locations of links might be accessible only to IBM employees.

[LibbyBot]

https://libh-proxy1.fyre.ibm.com/cognitive/pipelineAnalysis.html?uuid=ea9a359f-2e75-4998-9250-b8fee6d4415f has errors/failures.

[LibbyBot]

Your personal build request is at https://wasrtc.hursley.ibm.com:9443/jazz/resource/itemOid/com.ibm.team.build.BuildResult/_TuOMMYKYEe-TieZHY4j0Qw

Target locations of links might be accessible only to IBM employees.

[LibbyBot]

Code analysis and actions

DO NOT DELETE THIS COMMENT.

• 5 product code files were changed.

• Please describe in a separate comment how you tested your changes.

• 1 FAT files were changed, added, or removed.

• Check that the build did not break the affected FAT suite(s).

• 1 NLS files were changed and need an ID review.

• @OpenLiberty/message-reviewer Please review.

• dev/com.ibm.ws.concurrency.policy/resources/OSGI-INF/l10n/metatype.properties