Fix K1ColoringTest assertion

Author: vnickolov

algo/src/test/java/org/neo4j/gds/beta/k1coloring/K1ColoringTest.java

@@ -87,8 +87,8 @@ void testK1Coloring() {
             .isNotEqualTo(colorOfNode1)
             .isNotEqualTo(colorOfNode2);
         assertThat(colorOfNode1)
-            .as("Color of Node1 should be unique")
-            .isNotEqualTo(colorOfNode2);
+            .as("Color of Node1 should be the same as color of Node2")
+            .isEqualTo(colorOfNode2);
     }
 
     @Test