fix test failures

Author: graemerocher

grails-test-suite-persistence/build.gradle

@@ -6,6 +6,7 @@ dependencies {
                 project(':grails-plugin-datasource'),
                 project(':grails-plugin-i18n'),
                 project(':grails-plugin-url-mappings'),
+                project(':grails-plugin-databinding'),
                 project(':grails-plugin-services'),
                 project(':grails-plugin-controllers'),
                 project(':grails-bootstrap'),