Bump jexxa.release.version from 8.1.5 to 8.1.6

Bumps `jexxa.release.version` from 8.1.5 to 8.1.6.

Updates `io.jexxa:jexxa-web` from 8.1.5 to 8.1.6
- [Release notes](https://github.com/jexxa-projects/Jexxa/releases)
- [Changelog](https://github.com/jexxa-projects/Jexxa/blob/master/CHANGELOG.md)
- [Commits](jexxa-projects/Jexxa@jexxa-8.1.5...jexxa-8.1.6)

Updates `io.jexxa.jexxatest:jexxa-test` from 8.1.5 to 8.1.6
- [Release notes](https://github.com/jexxa-projects/Jexxa/releases)
- [Changelog](https://github.com/jexxa-projects/Jexxa/blob/master/CHANGELOG.md)
- [Commits](jexxa-projects/Jexxa@jexxa-8.1.5...jexxa-8.1.6)

---
updated-dependencies:
- dependency-name: io.jexxa:jexxa-web
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.jexxa.jexxatest:jexxa-test
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -45,7 +45,7 @@
         <maven.compiler.release>21</maven.compiler.release>
 
         <!-- version of dependencies -->
-        <jexxa.release.version>8.1.5</jexxa.release.version>
+        <jexxa.release.version>8.1.6</jexxa.release.version>
         <addend.version>2.0.2</addend.version>
         <activemq.artemis.client.version>2.39.0</activemq.artemis.client.version>
         <postgres.version>42.7.5</postgres.version>