Update dependency io.rest-assured:rest-assured to v5.3.0

Author: renovate[bot]

cxf-spring-boot-starter-samples/cxf-boot-simple-client/pom.xml

@@ -19,7 +19,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
-        <rest-assured.version>5.2.0</rest-assured.version>
+        <rest-assured.version>5.3.0</rest-assured.version>
         <groovy.version>3.0.13</groovy.version>
     </properties>