Fix getHeaderPredicate visibility to be declared as protected

Closes gh-23976

spring-web/src/main/java/org/springframework/web/filter/AbstractRequestLoggingFilter.java

@@ -199,7 +199,7 @@ public abstract class AbstractRequestLoggingFilter extends OncePerRequestFilter
 	 * @since 5.2
 	 */
 	@Nullable
-	public Predicate<String> getHeaderPredicate() {
+	protected Predicate<String> getHeaderPredicate() {
 		return this.headerPredicate;
 	}