Add missing package declaration in StronglyConnectedComponentOptimizedTest

Author: hewageuhcu

src/main/java/com/thealgorithms/graph/StronglyConnectedComponentOptimized.java

@@ -1,3 +1,4 @@
+package com.thealgorithms.graph;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;

src/test/java/com/thealgorithms/graph/StronglyConnectedComponentOptimizedTest.java

@@ -1,5 +1,7 @@
 package com.thealgorithms.graph;
 
+
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.ArrayList;