Update dynamic_programming/Unbounded_knapsack.cpp

Co-authored-by: realstealthninja <[email protected]>

Author: yeolesanskruti

dynamic_programming/Unbounded_knapsack.cpp

@@ -78,6 +78,6 @@ void tests() {
 }
 
 int main() {
-    test_cases();
+    tests(); // run self test implementation
     return 0;
 }