Encode Kafka messages with UTF8 #37675

Job	Run time
CI Sanity Check	31s
Initial JDK 17 Build	11m 58s
Attach pull request number	3s
Calculate Test Jobs	8s
Maven Tests - JDK 17	8m 15s
JVM Tests - JDK 17	11m 22s
Maven Tests - JDK 17 Windows	12m 21s
JVM Tests - JDK 21	13m 1s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	7m 20s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK 17	4m 52s
Kubernetes Tests - JDK 21	4m 31s
Quickstarts Compilation - JDK 17	5m 55s
Native Tests - Messaging1	31m 20s
Kubernetes Tests - JDK 17 Windows	3m 27s
MicroProfile TCKs Tests	0s
Native Tests - HTTP	5m 17s
Native Tests - Virtual Thread - Messaging	4m 7s
Build report	24s
	2h 4m 52s

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