Update dependency org.apache.cxf:cxf-core to v3.6.6

Author: renovate-02-kbuild[bot]

pom.xml

@@ -108,7 +108,7 @@
         <muleWsdl4j.version>1.6.5</muleWsdl4j.version>
         <slf4j.version>1.7.29</slf4j.version>
         <apache.commons.lang3.version>3.12.0</apache.commons.lang3.version>
-        <cxfRtWsdlVersion>3.5.10</cxfRtWsdlVersion>
+        <cxfRtWsdlVersion>3.6.6</cxfRtWsdlVersion>
         <hamcrest.version>2.2</hamcrest.version>
         <mule.metadata.version>1.6.0</mule.metadata.version>
         <kluentVersion>1.73</kluentVersion>