fixed multiple bugs & updated cicd workflows

executorcomputation/src/main/java/ch/unisg/executorcomputation/executor/domain/Executor.java

@@ -21,16 +21,18 @@ public class Executor extends ExecutorBase {
     protected
     String execution(String... input) {
 
+        System.out.println(input);
+
         double result = Double.NaN;
         int a = Integer.parseInt(input[0]);
         int b = Integer.parseInt(input[2]);
         String operation = input[1];
 
-        try {
-            TimeUnit.SECONDS.sleep(20);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
+        // try {
+        //     TimeUnit.SECONDS.sleep(20);
+        // } catch (InterruptedException e) {
+        //     e.printStackTrace();
+        // }
 
         if (operation == "+") {
             result = a + b;
@@ -40,7 +42,9 @@ public class Executor extends ExecutorBase {
             result = a - b;
         }
 
+        System.out.println("finish");
+
         return Double.toString(result);
     }
 
-}
+}