Add error message to quarkus-resteasy-reactive-links and improve documentation #36486

Job	Run time
Attach pull request number	2s
CI Sanity Check	31s
Initial JDK 17 Build	10m 8s
Calculate Test Jobs	10s
JVM Tests - JDK 17	5m 8s
JVM Tests - JDK 21	9m 2s
JVM Tests - JDK 17 Windows	9m 25s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
Maven Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - Data4	7m 49s
Quickstarts Compilation - JDK 17	6m 45s
Native Tests - Spring	5m 2s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Build report	22s
	54m 24s

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