Feature request: Upsert operation?

[maelle]

When using trackdown::upload_file() for a file that already exists on Google Drive, could trackdown ask the user whether they want to overwrite it?

[maelle]

Noting that cli has no equivalent to the handy usethis' yeah() function https://cli.r-lib.org/articles/usethis-ui.html#usethisui_yeah but it'd be a pity to add a dependency on usethis just for this.

[maelle]

@krlmlr note that there's https://claudiozandonella.github.io/trackdown/reference/update_file.html