SpringBoot Switch to Tomcat's new setter to set the maximum queue size

With Tomcat 10.1.25 (see https://github.com/apache/tomcat/commit/204f0fe75d1bdae7a071ac2a49ecd42fc033afe6), we can use a new setter to set the max queue size instead of configuring a custom executor, which we introduced in https://github.com/spring-projects/spring-boot/issues/36087. This will also fix https://github.com/spring-projects/spring-boot/issues/40957 and https://github.com/spring-projects/spring-boot/issues/40945.

For users there won't be any observable change.