feat: Add `is_renv_project` criterion looking for an `renv.lock` file

[gadenbuie]

A small PR to add an is_renv_project criterion that finds an renv.lock file containing "Packages": {. I needed this in a project and thought it might be broadly useful to others.

I updated documentation but not the snapshot tests as I'm running into odd testthat and pkgload errors that are likely specific to my machine and that I don't have time to diagnose at the moment. Hopefully it'll be easy for you to update the snapshots.

[aviator-app[bot]]

Current Aviator status

Aviator will automatically update this comment as the status of the PR changes. Comment /aviator refresh to force Aviator to re-examine your PR (or learn about other /aviator commands).

This PR was merged using Aviator.

---

See the real-time status of this PR on the Aviator webapp.

Use the Aviator Chrome Extension to see the status of your PR within GitHub.

[aviator-app[bot]]

This pull request failed to merge: PR cannot be automatically rebased, please rebase manually to continue. Remove the blocked label to re-queue.

Additional debug info: Failed to rebase this PR onto the latest changes from the base branch. You will probably need to rebase this PR manually and resolve conflicts).

[krlmlr]

Yeah, updating the snapshot is tricky -- requires installing the package and running testthat::test_local(load_package = "none") . I can handle that.

[aviator-app[bot]]

This pull request failed to merge: PR cannot be automatically rebased, please rebase manually to continue. Remove the blocked label to re-queue.

Additional debug info: Failed to rebase this PR onto the latest changes from the base branch. You will probably need to rebase this PR manually and resolve conflicts).

[aviator-app[bot]]

This pull request failed to merge: some CI status(es) failed. Remove the blocked label to re-queue.

Failed CI(s): Smoke test: stock R

[krlmlr]

Thanks for the PR!