Add client flag for percolator module build

modules/percolator/build.gradle

@@ -20,7 +20,8 @@
 esplugin {
     description 'Percolator module adds capability to index queries and query these queries by specifying documents'
     classname 'org.elasticsearch.percolator.PercolatorPlugin'
+    hasClientJar = true
 }
 
 compileJava.options.compilerArgs << "-Xlint:-deprecation,-rawtypes"
-compileTestJava.options.compilerArgs << "-Xlint:-deprecation,-rawtypes"
+compileTestJava.options.compilerArgs << "-Xlint:-deprecation,-rawtypes"