Update to export to 2024.3.1 (#597)

src/main/java/robotbuilder/exporters/GenericExporter.java

@@ -158,7 +158,7 @@ public boolean export(RobotTree robotTree) throws IOException {
             }
         }
         if(wpilibRelease == null) {
-            wpilibRelease = "2024.2.1"; // this shouldn't need to be relied upon,
+            wpilibRelease = "2024.3.1"; // this shouldn't need to be relied upon,
                                         // but its better than generating nothing.
         }