Bump to Mutiny 3.1.0 and Mutiny Vert.x bindings 3.21.1

[jponge]

There is no need for these changes to be back-ported.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit b035caa.

✅ 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

⚙️ JVM Tests - JDK 17 Windows

📦 extensions/micrometer-opentelemetry/deployment

❌ io.quarkus.micrometer.opentelemetry.deployment.compatibility.MicrometerTimedInterceptorTest.testTimeMethod_Uni - History

• Stream has no elements - java.lang.IllegalArgumentException

java.lang.IllegalArgumentException: Stream has no elements
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lambda$lastReading$2(MetricDataFilter.java:213)
	at java.base/java.util.Optional.orElseThrow(Optional.java:403)
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lastReading(MetricDataFilter.java:213)
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lastReadingDataPoint(MetricDataFilter.java:231)
	at io.quarkus.micrometer.opentelemetry.deployment.compatibility.MicrometerTimedInterceptorTest.testTimeMethod_Uni(MicrometerTimedInterceptorTest.java:174)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.QuarkusUnitTest.runExtensionMethod(QuarkusUnitTest.java:532)

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⚙️ MicroProfile TCKs Tests

📦 tcks/microprofile-lra

❌ org.eclipse.microprofile.lra.tck.TckRecoveryTests.testCancelWhenParticipantIsUnavailable - History

• Expecting the metric Compensated callback was called Expected: a value equal to or greater than <1> but: <0> was less than <1> - java.lang.AssertionError

java.lang.AssertionError: 
Expecting the metric Compensated callback was called
Expected: a value equal to or greater than <1>
     but: <0> was less than <1>
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
	at org.eclipse.microprofile.lra.tck.TckRecoveryTests.assertMetricCallbackCalled(TckRecoveryTests.java:210)
	at org.eclipse.microprofile.lra.tck.TckRecoveryTests.testCancelWhenParticipantIsUnavailable(TckRecoveryTests.java:195)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)