Replace com.sun.*:jakarta.* with org.eclipse.angus.angus-*

com.sun.activation:jakarta.activation is not being maintained for a long time. Better to replace it with org.eclipse.angus.angus-activation. Please also see the ticket CMS-15838.
https://github.com/jakartaee/jaf-api
https://eclipse-ee4j.github.io/angus-activation/
 
com.sun.mail:jakarta.mail can also be replaced with angus-mail library which is being maintained actively.
https://eclipse-ee4j.github.io/angus-mail/
https://github.com/jakartaee/mail-api

This is a must-have for 16 because we use Spring Boot 3.2.3.
Sun's latest (and last) jars are version 2.0.1, and they contain the api classes, and Spring Boot 3.2.3 dictates 2.1.2 for jakarta.mail-api and jakarta.activation-api.