docker container with k6-with-browser and vnc

[pjotal]

Feature Description

now that we have experimental browser support in k6 and a -with-browser docker container, it would be nice to have a version of the container that includes vnc so we can "watch" the browser test execution for development and debugging purposes.

Suggested Solution (optional)

this image (elestio/docker-desktop-vnc:latest) is a popular example of ubuntu with vnc and could be used as a reference, so you have an idea of how to build it.

you could expose some environment variables like the ones below to make it simple for consumption.

• K6_VNC_PORT
• K6_VNC_PASSWORD
• K6_VNC_RESOLUTION

Already existing or connected issues / PRs (optional)

No response