Integrate drawpyo-export Docker image

[MerrimanInd]

@rlespinasse created a useful Docker image with an export drawpyo file action. This could be integrated to drawpyo to support exporting a diagram to another file.

https://github.com/rlespinasse/drawio-export

There's also a Github action that can be integrated into build scripts for generating documentation! Ain't that cool.

https://github.com/rlespinasse/drawio-export-action?tab=readme-ov-file