Bump org.geoserver:gs-wms from 2.22.5 to 2.23.4

Bumps org.geoserver:gs-wms from 2.22.5 to 2.23.4.

---
updated-dependencies:
- dependency-name: org.geoserver:gs-wms
  dependency-type: direct:production
...

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

pom.xml

@@ -61,7 +61,7 @@
         <version.deltaspike>1.9.0</version.deltaspike>
         <version.easymock>5.2.0</version.easymock>
         <version.eclipse.emf>2.15.0</version.eclipse.emf>
-        <version.geoserver>2.22.5</version.geoserver>
+        <version.geoserver>2.23.4</version.geoserver>
         <version.geotools>28.1</version.geotools>
         <version.geowave>1.2.0</version.geowave>
         <version.google-guava>31.1-jre</version.google-guava>