Upgrade to Spring Security 5.0.6.RELEASE

Closes gh-13459

Author: wilkinsona

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

@@ -163,7 +163,7 @@
 		<spring-plugin.version>1.2.0.RELEASE</spring-plugin.version>
 		<spring-restdocs.version>2.0.1.RELEASE</spring-restdocs.version>
 		<spring-retry.version>1.2.2.RELEASE</spring-retry.version>
-		<spring-security.version>5.0.5.RELEASE</spring-security.version>
+		<spring-security.version>5.0.6.RELEASE</spring-security.version>
 		<spring-session-bom.version>Apple-SR2</spring-session-bom.version>
 		<spring-ws.version>3.0.1.RELEASE</spring-ws.version>
 		<sqlite-jdbc.version>3.21.0.1</sqlite-jdbc.version>