Update to Thymeleaf 3.0.11.RELEASE

Fixes gh-7948

Author: rwinch

gradle/javaprojects.gradle

@@ -37,7 +37,7 @@ ext.springDataJpaVersion = '1.11.23.RELEASE'
 ext.springDataRedisVersion = '1.8.23.RELEASE'
 ext.springSessionVersion = '1.3.5.RELEASE'
 ext.springBootVersion = '1.5.22.RELEASE'
-ext.thymeleafVersion = '3.0.9.RELEASE'
+ext.thymeleafVersion = '3.0.11.RELEASE'
 ext.jsonassertVersion = '1.4.0'
 ext.validationApiVersion = '1.1.0.Final'