fix: resolve Checkstyle whitespace issues

Author: “gozhort”

src/test/java/com/thealgorithms/strings/ReverseStringRecursiveTest.java

@@ -16,7 +16,7 @@ public class ReverseStringRecursiveTest {
 
     @ParameterizedTest
     @CsvSource({"'Hello World', 'dlroW olleH'", "'helloworld', 'dlrowolleh'", "'123456789', '987654321'", "'', ''", "'A', 'A'", "'!123 ABC xyz!', '!zyx CBA 321!'", "'Abc 123 Xyz', 'zyX 321 cbA'", "'12.34,56;78:90', '09:87;65,43.21'", "'abcdEFGHiJKL', 'LKJiHGFEdcba'",
-            "'MixOf123AndText!', '!txeTdnA321fOxiM'"})
+        "'MixOf123AndText!', '!txeTdnA321fOxiM'"})
     public void
     testReverseUsingStringBuilder(String input, String expectedOutput) {
         assertEquals(expectedOutput, ReverseStringRecursive.reverseUsingStringBuilder(input));