Update dependency org.codehaus.groovy:groovy-all to v2.5.14

Author: renovate-bot

graphql-java-servlet/build.gradle

@@ -32,7 +32,7 @@ dependencies {
     testCompile 'io.github.graphql-java:graphql-java-annotations:8.3'
 
     // Unit testing
-    testCompile "org.codehaus.groovy:groovy-all:2.4.1"
+    testCompile "org.codehaus.groovy:groovy-all:2.5.14"
     testCompile "org.spockframework:spock-core:1.1-groovy-2.4-rc-3"
     testRuntime "cglib:cglib-nodep:3.2.4"
     testRuntime "org.objenesis:objenesis:2.5.1"