fixed syntax error

Author: kvadrik

src/test/java/com/thealgorithms/maths/AreaTest.java

@@ -19,6 +19,7 @@ void testSurfaceAreaCube() {
     @Test
     void testSurfaceAreaCuboid() {
         assertEquals(214.0, Area.surfaceAreaCuboid(5, 6, 7));
+    }
 
     @Test
     void testSurfaceAreaSphere() {