Unskip test_Exception_onReadingData_isReadyFalse for Netty

[volosied]

Note: still fails

• 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".

[volosied]

!build
(view Open Liberty Personal Build - ⏳InProgress)
extra.fat.ant.options=-Dglobal.jvm.args="-Dcom.ibm.ws.beta.edition=true"
spawn.fullfat.buckets=com.ibm.ws.webcontainer.servlet.3.1_fat.2

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[LibbyBot]

Code analysis and actions

DO NOT DELETE THIS COMMENT.

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

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

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

[volosied]

Fails in 5 seconds:

<testcase classname="com.ibm.ws.webcontainer.servlet31.fat.tests.AsyncReadListenerHttpUnit" name="test_Exception_onReadingData_isReadyFalse" time="5.308">
<failure message="2026-09-05-00:35:07:945 http://localhost:8010/LibertyReadWriteListenerTest/TestAsyncReadServlet : Response code is not 500 expected:<500> but was:<200>" type="junit.framework.AssertionFailedError">
junit.framework.AssertionFailedError: 2026-09-05-00:35:07:945 http://localhost:8010/LibertyReadWriteListenerTest/TestAsyncReadServlet : Response code is not 500 expected:<500> but was:<200> at com.ibm.ws.webcontainer.servlet31.fat.tests.AsyncReadListenerHttpUnit.test_Exception_onReadingData_isReadyFalse(AsyncReadListenerHttpUnit.java:401) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at componenttest.custom.junit.runner.FATRunner$1.evaluate(FATRunner.java:242) at componenttest.custom.junit.runner.FATRunner$2.evaluate(FATRunner.java:412) at componenttest.custom.junit.runner.FATRunner.run(FATRunner.java:204) at componenttest.rules.repeater.RepeatTests$CompositeRepeatTestActionStatement.evaluate(RepeatTests.java:149)
</failure>
</testcase>

[isaacrivriv]

LGTM