[3.2] Upgrade Jandex to 3.1.6

[aloubyansky]

Backport of #37351

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[quarkus-bot]

Failing Jobs - Building cc99aab

Status	Name	Step	Failures	Logs	Raw logs	Build scan
✔️	Gradle Tests - JDK 11					🚧
✖	Gradle Tests - JDK 11 Windows	Build	Failures	Logs	Raw logs	🚧

Full information is available in the Build summary check run.

Failures

⚙️ Gradle Tests - JDK 11 Windows #

- Failing: integration-tests/gradle 

📦 integration-tests/gradle

✖ io.quarkus.gradle.CustomManifestArgumentsTest.shouldContainsSpecificManifestProperty line 37 - More details - Source on GitHub

java.lang.AssertionError: 

Expecting actual not to be null
	at io.quarkus.gradle.CustomManifestArgumentsTest.shouldContainsSpecificManifestProperty(CustomManifestArgumentsTest.java:37)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)