Polish "Change Banner declaration with new Java Syntax"

See gh-39585

Author: mhalbritter

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringBootBanner.java

@@ -51,7 +51,6 @@ public void printBanner(Environment environment, Class<?> sourceClass, PrintStre
 		while (padding.length() < STRAP_LINE_SIZE - (version.length() + SPRING_BOOT.length())) {
 			padding.append(" ");
 		}
-
 		printStream.println(AnsiOutput.toString(AnsiColor.GREEN, SPRING_BOOT, AnsiColor.DEFAULT, padding.toString(),
 				AnsiStyle.FAINT, version));
 		printStream.println();

src/checkstyle/checkstyle-suppressions.xml

@@ -82,4 +82,5 @@
 	<suppress files="ImportTestcontainersTests\.java" checks="InterfaceIsType" />
 	<suppress files="MyContainers\.java" checks="InterfaceIsType" />
 	<suppress files="CertificateMatchingTest\.java" checks="SpringTestFileName" />
+	<suppress files="SpringBootBanner\.java" checks="SpringLeadingWhitespace" />
 </suppressions>