Bump io.smallrye:jandex-maven-plugin from 3.1.7 to 3.1.8

Bumps [io.smallrye:jandex-maven-plugin](https://github.com/smallrye/jandex) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/smallrye/jandex/releases)
- [Commits](smallrye/jandex@3.1.7...3.1.8)

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

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -23,7 +23,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <quarkus.version>3.9.3</quarkus.version>
-        <jandex-plugin.version>3.1.7</jandex-plugin.version>
+        <jandex-plugin.version>3.1.8</jandex-plugin.version>
 
         <quarkus-github-api.version>1.321.0</quarkus-github-api.version>
         <quarkus-github-app.version>2.5.1</quarkus-github-app.version>