Set label to null by default

Signed-off-by: Lehmann_Fabian <[email protected]>

Author: Lehmann-Fabian

src/main/java/cws/k8s/scheduler/dag/InputEdge.java

@@ -9,7 +9,7 @@
 public class InputEdge {
 
     private final int uid;
-    private final String label;
+    private final String label = null;
     private final int from;
     private final int to;