Bump cxf.xnio.version from 3.8.14.Final to 3.8.15.Final (#1898)

Bumps `cxf.xnio.version` from 3.8.14.Final to 3.8.15.Final.

Updates `org.jboss.xnio:xnio-nio` from 3.8.14.Final to 3.8.15.Final

Updates `org.jboss.xnio:xnio-api` from 3.8.14.Final to 3.8.15.Final

---
updated-dependencies:
- dependency-name: org.jboss.xnio:xnio-nio
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.jboss.xnio:xnio-api
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

parent/pom.xml

@@ -238,7 +238,7 @@
         <cxf.wsdl4j.version>1.6.3</cxf.wsdl4j.version>
         <cxf.jakarta.wss4j.version>3.0.3</cxf.jakarta.wss4j.version>
         <cxf.xmlschema.version>2.3.1</cxf.xmlschema.version>
-        <cxf.xnio.version>3.8.14.Final</cxf.xnio.version>
+        <cxf.xnio.version>3.8.15.Final</cxf.xnio.version>
         <cxf.zest.version>2.1</cxf.zest.version>
         <cxf.zipkin-reporter.version>2.17.2</cxf.zipkin-reporter.version>