Bump jandex-maven-plugin from 3.0.3 to 3.1.2

Bumps [jandex-maven-plugin](https://github.com/smallrye/jandex) from 3.0.3 to 3.1.2.
- [Release notes](https://github.com/smallrye/jandex/releases)
- [Commits](smallrye/jandex@3.0.3...3.1.2)

---
updated-dependencies:
- dependency-name: io.smallrye:jandex-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -353,7 +353,7 @@
         <version.exec.plugin>3.1.0</version.exec.plugin>
         <version.forbiddenapis.plugin>3.4</version.forbiddenapis.plugin>
         <version.install.plugin>3.1.1</version.install.plugin>
-        <version.jandex.plugin>3.0.3</version.jandex.plugin>
+        <version.jandex.plugin>3.1.2</version.jandex.plugin>
         <version.japicmp.plugin>0.17.2</version.japicmp.plugin>
         <version.jar.plugin>3.3.0</version.jar.plugin>
         <version.javadoc.plugin>3.5.0</version.javadoc.plugin>