fix: examples/servlet/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-7945490
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHECXF-8648831
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-6261586
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHETOMCATEMBED-8523186
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHETOMCATEMBED-8547999
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-8230373
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-6444790
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-7687447
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-6597980
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-8230364
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-8230365
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-8230366
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-8230368

examples/servlet/pom.xml

@@ -17,7 +17,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.8</java.version>
-		<cxf.version>3.5.4</cxf.version>
+		<cxf.version>3.5.10</cxf.version>
 		<log4j.version>2.8.2</log4j.version>
 		<xml-log-filter.version>1.0.9-SNAPSHOT</xml-log-filter.version>		
 	</properties>