Integrate with renv

[grst]

Description of feature

In addition to dumping a sessionInfo() at the end of each document (see also #128), we could explore integration with renv for dependency management.

For python projects, dso is already fully integrated with uv for this purpose.

[grst]

Also consider setting the python installation used to .venv as described here. It will then also be used for reticulate.

https://pkgs.rstudio.com/renv/reference/use_python.html

renv::use_python(name = ".venv")

[grst]

rv is a newer alternative to renv:
https://a2-ai.github.io/rv-docs/