Fix clang

Author: Hardvan

src/test/java/com/thealgorithms/stacks/InfixToPrefixTest.java

@@ -17,8 +17,7 @@ void testValidExpressions(String infix, String expectedPrefix) throws Exception
     }
 
     private static Stream<Arguments> provideValidExpressions() {
-        return Stream.of(
-            Arguments.of("3+2", "+32"), // Simple addition
+        return Stream.of(Arguments.of("3+2", "+32"), // Simple addition
             Arguments.of("1+(2+3)", "+1+23"), // Parentheses
             Arguments.of("(3+4)*5-6", "-*+3456"), // Nested operations
             Arguments.of("a+b*c", "+a*bc") // Multiplication precedence
@@ -33,8 +32,7 @@ void testInvalidExpressions(String infix, String expectedMessage) {
     }
 
     private static Stream<Arguments> provideInvalidExpressions() {
-        return Stream.of(
-            Arguments.of("((a+b)*c-d", "invalid expression"), // Missing closing bracket
+        return Stream.of(Arguments.of("((a+b)*c-d", "invalid expression"), // Missing closing bracket
             Arguments.of("a++b", "invalid expression") // Invalid operator
         );
     }