Update Spring Boot to 2.4.x

[php-coder]

Changelogs:

• Spring Boot 2.4
  • https://spring.io/blog/2020/04/30/updates-to-spring-versions
  • https://spring.io/blog/2020/06/29/spring-boot-2-4-0-m1-is-now-available
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4.0-M1-Release-Notes
  • https://spring.io/blog/2020/08/14/spring-boot-2-4-0-m2-is-now-available
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4.0-M2-Release-Notes
    • https://spring.io/blog/2020/08/14/config-file-processing-in-spring-boot-2-4
  • https://spring.io/blog/2020/09/17/spring-boot-2-4-0-m3-available-now
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4.0-M3-Release-Notes
  • https://spring.io/blog/2020/10/15/spring-boot-2-4-0-m4-available-now
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4.0-M4-Release-Notes
  • https://spring.io/blog/2020/10/30/spring-boot-2-4-0-rc1-available-now
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4.0-RC1-Release-Notes
  • https://spring.io/blog/2020/11/12/spring-boot-2-4-0-available-now
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4-Release-Notes
    • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-Config-Data-Migration-Guide
  • https://spring.io/blog/2020/12/11/spring-boot-2-4-1-available-now
  • https://spring.io/blog/2021/01/14/spring-boot-2-4-2-available-now
  • https://spring.io/blog/2021/02/18/spring-boot-2-4-3-is-now-available
  • https://spring.io/blog/2021/03/18/spring-boot-2-4-4-available-now
  • https://spring.io/blog/2021/04/15/spring-boot-2-4-5-available-now
  • https://spring.io/blog/2021/05/20/spring-boot-2-4-6-available-now
  • https://spring.io/blog/2021/06/10/spring-boot-2-4-7-available-now
  • https://spring.io/blog/2021/06/24/spring-boot-2-4-8-is-now-available
  • https://spring.io/blog/2021/07/22/spring-boot-2-4-9-is-now-available
  • https://spring.io/blog/2021/08/19/spring-boot-2-4-10-is-now-available
  • https://spring.io/blog/2021/09/22/spring-boot-2-4-11-available-now
  • https://spring.io/blog/2021/10/21/spring-boot-2-4-12-is-now-available
  • https://spring.io/blog/2021/11/18/spring-boot-2-4-13-available-now
  • https://spring.io/blog/2021/01/17/what-s-new-in-spring-boot-2-4 (video)
• Spring Framework 5.3
  • https://github.com/spring-projects/spring-framework/wiki/What's-New-in-Spring-Framework-5.x#whats-new-in-version-53
  • https://spring.io/blog/2020/06/30/url-matching-with-pathpattern-in-spring-mvc
• Spring Security 5.4
  • https://docs.spring.io/spring-security/site/docs/5.4.0/reference/html5/#new
  • https://spring.io/blog/2022/02/21/spring-security-without-the-websecurityconfigureradapter
• Action points:
  • pom.xml: consider removing spring-framework.version and spring-security.version
  • MvcConfig: remove deprecation and usage of setUseSuffixPatternMatch() during upgrade to Spring Framework 5.3
  • try to WebSecurityConfigurerAdapter with SecurityFilterChain bean(s) (see https://github.com/spring-projects/spring-security/issues/8804 and spring-projects/spring-security@4492e5b)
  • revise RequestRejectedException handling (seehttps://github.com/spring-projects/spring-security/issues/5007 and https://github.com/spring-projects/spring-security/pull/7052)

Should be done after #1244