Introduce per invocation override of REST Client's base URL

[geoand]

This is done by introducing the @Url annotation that can be placed on a method parameter.
When this parameter is not null, it will be used as the base URL for the specific invocation.

• Closes: Make it possible to set the base URL of the REST Client when actually performing the call #43316

[github-actions]

🙈 The PR is closed and the preview is expired.

[quarkus-bot]

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[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 3c4e614.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

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Flaky tests - Develocity

⚙️ Native Tests - HTTP

📦 integration-tests/rest-client-reactive

✖ io.quarkus.it.rest.client.BasicTestIT.shouldCreateClientSpans - History

• expected: <1> but was: <2> - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: expected: <1> but was: <2>
	at io.quarkus.it.rest.client.BasicTest.shouldCreateClientSpans(BasicTest.java:216)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:810)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)