Flaky test: JvmServerTest > concurrent encoding -- multiple evaluators with module reads()

[odenix]

This recently added test regularly fails with:

JvmServerTest > concurrent encoding -- multiple evaluators with module reads() FAILED
    java.lang.AssertionError: 2 encoding errors (decoded 3894/4000): Write end dead
        at org.pkl.server.AbstractServerTest.concurrent encoding -- multiple evaluators with module reads(AbstractServerTest.kt:930)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)

        Caused by:
        java.io.IOException: Write end dead
            at java.base/java.io.PipedInputStream.read(PipedInputStream.java:316)
            at java.base/java.io.PipedInputStream.read(PipedInputStream.java:380)
            at java.base/java.io.InputStream.read(InputStream.java:220)
            at org.msgpack.core.buffer.InputStreamBufferInput.next(InputStreamBufferInput.java:75)
            at org.msgpack.core.MessageUnpacker.ensureBuffer(MessageUnpacker.java:361)
            at org.msgpack.core.MessageUnpacker.hasNext(MessageUnpacker.java:354)
            at org.pkl.core.messaging.AbstractMessagePackDecoder.decode(AbstractMessagePackDecoder.java:52)
            at org.pkl.server.AbstractServerTest.concurrent_encoding____multiple_evaluators_with_module_reads$lambda$2(AbstractServerTest.kt:904)
            at java.base/java.lang.Thread.run(Thread.java:1583)

[zeel2104]

Is it open for contribution?