jetbrains-jdk: add missing runtime dependency.

[aoli-al]

Things done

Add missing dependency according to: https://github.com/JetBrains/JetBrainsRuntime/blob/da1ad417adde9b6766e2f3777004d55f52a0ed32/.github/README.md?plain=1#L164

This prevents Intellij idea from crashing when -Dawt.toolkit.name=WLToolkit is set.

Stack trace:

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JRE: 21.0.6+6-nixos amd64 (JetBrains s.r.o.)
/nix/store/gl7nsv9a75wzji9g0fd1yc1mbi8pvpln-jetbrains-jdk-jcef-21.0.6-b895.109/lib/openjdk

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Also, a UI exception occurred in an attempt to show the above message:
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.wl.WLToolkit
        at java.desktop/sun.awt.PlatformGraphicsInfo.createToolkit(PlatformGraphicsInfo.java:75)
        at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:595)
        at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:213)
        at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:232)
        at com.intellij.platform.ide.bootstrap.StartupErrorReporter.showError(StartupErrorReporter.java:138)
        at com.intellij.platform.ide.bootstrap.StartupErrorReporter.showError(StartupErrorReporter.java:99)
        at com.intellij.idea.Main.mainImpl(Main.kt:86)
        at com.intellij.idea.Main.main(Main.kt:47)
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.UnsatisfiedLinkError: No such file or directory (libxkbcommon.so) [in thread "DefaultDispatcher-worker-7"]
        at java.desktop/sun.awt.wl.WLKeyboard.initialize(Native Method)
        at java.desktop/sun.awt.wl.WLKeyboard.<init>(WLKeyboard.java:37)
        at java.desktop/sun.awt.wl.WLToolkit.<clinit>(WLToolkit.java:167)
        at java.desktop/sun.awt.PlatformGraphicsInfo.createToolkit(PlatformGraphicsInfo.java:75)
        at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:595)
        at com.intellij.platform.ide.bootstrap.UiKt$initAwtToolkit$2.invokeSuspend(ui.kt:139)
        at com.intellij.platform.ide.bootstrap.UiKt$initAwtToolkit$2.invoke(ui.kt)
        at com.intellij.platform.ide.bootstrap.UiKt$initAwtToolkit$2.invoke(ui.kt)
        at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:62)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:163)
        at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
        at com.intellij.platform.diagnostic.telemetry.impl.TracerKt.span(tracer.kt:56)
        at com.intellij.platform.diagnostic.telemetry.impl.TracerKt.span$default(tracer.kt:48)
        at com.intellij.platform.ide.bootstrap.UiKt.initAwtToolkit(ui.kt:138)
        at com.intellij.platform.ide.bootstrap.UiKt.access$initAwtToolkit(ui.kt:1)
        at com.intellij.platform.ide.bootstrap.UiKt$scheduleInitAwtToolkit$task$1$1.invokeSuspend(ui.kt:121)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:608)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:873)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:763)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:750)

• Built on platform:
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• Tested, as applicable:
  • NixOS tests in nixos/tests.
  • Package tests at passthru.tests.
  • Tests in lib/tests or pkgs/test for functions and "core" functionality.
• Ran nixpkgs-review on this PR. See nixpkgs-review usage.
• Tested basic functionality of all binary files, usually in ./result/bin/.
• Nixpkgs Release Notes
  • Package update: when the change is major or breaking.
• NixOS Release Notes
  • Module addition: when adding a new NixOS module.
  • Module update: when the change is significant.
• Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

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