Change default Gradle tasks to 'check publish'

This is for the Gradle workflow. Adding 'check' before 'publish' allows
the CI to check for things like licenses and unit tests (if applicable
via the test task).

Author: Jonathing

src/main/groovy/net/minecraftforge/gradleutils/GenerateActionsWorkflow.groovy

@@ -95,9 +95,10 @@ abstract class GenerateActionsWorkflow extends DefaultTask {
             }
         ] as Map<String, ?>
 
+        var taskPrefix = localPath ? ":${localPath}:" : ''
         var with = [
             'java'        : this.gradleJavaVersion.get(),
-            'gradle_tasks': "${localPath ? ":${localPath}:" : ''}build".toString()
+            'gradle_tasks': "${taskPrefix}check ${taskPrefix}publish".toString()
         ] as Map<String, ?>
         if (localPath) with.put('subproject', localPath)