Upgrade to Spring Web Services 3.0.6.RELEASE

Closes gh-15667

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -167,7 +167,7 @@
 		<spring-retry.version>1.2.2.RELEASE</spring-retry.version>
 		<spring-security.version>5.0.11.BUILD-SNAPSHOT</spring-security.version>
 		<spring-session-bom.version>Apple-BUILD-SNAPSHOT</spring-session-bom.version>
-		<spring-ws.version>3.0.4.RELEASE</spring-ws.version>
+		<spring-ws.version>3.0.6.RELEASE</spring-ws.version>
 		<sqlite-jdbc.version>3.21.0.1</sqlite-jdbc.version>
 		<statsd-client.version>3.1.0</statsd-client.version>
 		<sun-mail.version>${javax-mail.version}</sun-mail.version>