Added JVM flag to disable JNI use warning with JDK 24.

[shivam71]

With reference to JEP 472 part of JDK 24. By default warnings are issued for use of JNI . Since nbcode/platform/modules/ext/jna-5.14.0.jar uses JNI adding JVM flag is necessary to ensure no warnings appear with JDK 24 and with future JDKs it works .

JVM Flag enable-native-access support with JDKs

• The flag is officially supported by JDK 22 Java Command Standard Options section .
• Though it was introduced as part of the Foreign Functions and Memory API when released as incubator feature in JDK 17 JEP 412 .
• Manually checking with Oracle JDK 17 onwards using java --help also shows this flag .
• This flag is part of the OpenJDK 17 onwards checked from JVM Runtime Args JDK 17 . So most vendors that build on top of OpenJDK should support this from JDK 17 onwards .(Checked corretto it does support this flag from 17 Onwards .)

For Testing

• Download the latest JDK24-ea build.
• Set JDK Home in JSON preferences in vscode .
• Open Java project and see in the output channel for 'Oracle Java SE Language' no warnings for JNI appear.
• Check that extension features work as it is.

[lahodaj]

Seems good to me, thanks!