Support for Java 21

[jabrena]

Hi,

Recently I moved one project to Java 21, but I didn´t see any base image for Java 21. https://mcr.microsoft.com/v2/vscode/devcontainers/java/tags/list

Does exist any plans to add that support?

As a workaround, I created a simple docker image for that purpose:

	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
    //https://mcr.microsoft.com/v2/vscode/devcontainers/java/tags/list
	//"image": "mcr.microsoft.com/devcontainers/java:0-17",
    "build": {
        "dockerfile": "Dockerfile",
        "context": "."
    },

# https://hub.docker.com/_/eclipse-temurin/tags?page=1&name=21-jdk
FROM eclipse-temurin:21-jdk-jammy

Many thanks in advance

Juan Antonio