WebSockets Next: support arrays as valid return types of callbacks #1838

Job	Run time
Initial JDK 17 Build	14m 21s
CI Sanity Check	31s
Attach pull request number	0s
Calculate Test Jobs	13s
JVM Tests - JDK 17	7m 22s
JVM Tests - JDK 21	8m 5s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	13m 45s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Maven Tests - JDK ${{ matrix.java.name }}	0s
Quickstarts Compilation - JDK 17	6m 4s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - HTTP	4m 18s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Upload build stats to collector	0s
Build report	39s
	55m 18s

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