Qute message bundles: add Message#defaultValue() #50059

Job	Run time
Attach pull request number	2s
CI Sanity Check	32s
Initial JDK 17 Build	7m 58s
Calculate Test Jobs	12s
Maven Tests - JDK 17	8m 15s
Maven Tests - JDK 17 Windows	11m 14s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17	13m 20s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 21	11m 40s
Quickstarts Compilation - JDK 17	6m 30s
JVM Tests - JDK 17 Windows	20m 4s
Native Tests - Virtual Thread - Main	3m 48s
JVM Integration Tests - JDK 17	2m 17s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
JVM Integration Tests - JDK 21	2m 34s
JVM Integration Tests - JDK 17 Windows	4m 2s
Native Tests - Misc1	5m 11s
Native Tests - Misc2	5m 41s
MicroProfile TCKs Tests	0s
Native Tests - Windows support	8m 14s
Upload build stats to collector	0s
Build report	39s
	1h 52m 13s

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