Merge pull request #590 from openregister/dependabot/gradle/org.thymeleaf-thymeleaf-3.0.11.RELEASE

Bump thymeleaf from 3.0.9.RELEASE to 3.0.11.RELEASE

Author: gidsg

external-dependencies.gradle

@@ -51,7 +51,7 @@ ext {
 
     markdown = 'org.markdownj:markdownj-core:0.4'
 
-    thymeleaf = 'org.thymeleaf:thymeleaf:3.0.9.RELEASE'
+    thymeleaf = 'org.thymeleaf:thymeleaf:3.0.11.RELEASE'
 
     dropwizardLogstash = "uk.gov.ida:dropwizard-logstash:1.1.2-build_46"