javadoc-links breaks javadoc build for Spring Boot 3.3.x

[nixel2007]

Hello!
Recently Spring Boot team reorganized their documentation portal.javadoc api section is placed on other URL now.
javadoc-links plugin tries to guess "well known" links for a bunch of projects, including Spring Boot. Since links are no longer available it fails the build with following error:

error: Error fetching URL: https://docs.spring.io/spring-boot/docs/3.3.1/api/ (java.io.FileNotFoundException: https://docs.spring.io/spring-boot/docs/3.3.1/api/package-list) 

The problematic code is located here: https://github.com/freefair/gradle-plugins/blob/main/maven-plugin/src/main/java/io/freefair/gradle/plugins/maven/javadoc/linkproviders/SpringLinkProvider.java

For Spring Boot 3.2 and older link should be:
https://docs.spring.io/spring-boot/docs/3.2.5/api

For Spring Boot 3.3 and newer link should be:
https://docs.spring.io/spring-boot/3.3.5/api/java/index.html

See discussion in Spring Boot repo for additional details.
spring-projects/spring-boot#41207