Bump spotless version and update config for groovyGradle stuff (#979)

shared/common.gradle

@@ -89,7 +89,7 @@ jacocoTestReport {
     afterEvaluate {
         classDirectories.setFrom(files(classDirectories.files.collect {
             fileTree(dir: it,
-                    exclude: "edu/wpi/**"
+            exclude: "edu/wpi/**"
             )
         }))
     }