Add missing code for improved AppCDS feature

[geoand]

Follow up of #28638 as I had managed to forget to commit this part...

[quarkus-bot]

Failing Jobs - Building 8f9947b

Status	Name	Step	Failures	Logs	Raw logs
✔️	JVM Tests - JDK 11
✖	JVM Tests - JDK 11 Windows	Build	Failures	Logs	Raw logs
✔️	JVM Tests - JDK 17
✔️	JVM Tests - JDK 17 MacOS M1
✔️	JVM Tests - JDK 18

Full information is available in the Build summary check run.

Failures

⚙️ JVM Tests - JDK 11 Windows #

- Failing: extensions/opentelemetry/deployment 
! Skipped: integration-tests/micrometer-prometheus integration-tests/opentelemetry integration-tests/opentelemetry-grpc and 5 more

📦 extensions/opentelemetry/deployment

✖ io.quarkus.opentelemetry.deployment.instrumentation.RestClientOpenTelemetryTest.client line 65 - More details - Source on GitHub

org.opentest4j.AssertionFailedError: expected: <SERVER> but was: <CLIENT>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)