Include Xvfb to support cypress by default

[norgeindian]

It would be awesome, if Xvfb could be included by default.
Currently, it is not possible to run cypress inside the warden shell, as this system dependency is missing.
You get the following error message, whey you try it:

Your system is missing the dependency: Xvfb

Install Xvfb and run Cypress again.

Read our documentation on dependencies for more information:

https://on.cypress.io/required-dependencies

If you are using Docker, we provide containers with all required dependencies installed.

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Error: spawn Xvfb ENOENT

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Platform: linux-x64 (CentOS - 9
)
Cypress Version: 13.2.0

As far as I see, this is the only missing dependency, listed on https://docs.cypress.io/guides/getting-started/installing-cypress#Linux-Prerequisites