Provide Java 16 build for the PreInstalled type in JavaToolInstaller

[LadyCailin]

Question, Bug, or Feature?
Feature

Enter Task Name: JavaToolInstaller

Environment

Hosted

Issue Description

JavaToolInstaller provides JDK 8 and JDK 11 by default. However, Java 16 is the latest version, and should also be supported by default, especially given that there's an official Microsoft build of it. Currently, in order to use JDK 16 in the build pipeline, one must host the jdk in an azure blob store, but for most people that's probably just going to be a standard build, and using one of the AdoptOpenJDK or Microsoft builds would be sufficient. This would make #14915 an easy fix as well, since it's just about getting rid of the warnings.

[anatolybolshakov]

Hi @LadyCailin this is related to JDK versions being pre-installed on hosted images and not related to the task itself - could you please create ticket on https://github.com/actions/virtual-environments to get right eyes on it?
Let me close this one here since it's not related to the pipeline task.