Feature request: interface for updating Compat.toml in a registry

[tkf]

Continuing discussion in JuliaRegistries/General#5098:

I find manually updating Compat.toml is hard and rather scary as it's error-prone, especially because Compat.toml does some kind of "compressing" (or generating reverse dict or something?). It would be nice to have an automated tool to introduce new bounds in Compat.toml.

(I'm not sure if Pkg.jl is the perfect place to file this issue but it's hard to find a better place. Also maybe overlapping with/dup of #1190.)

[KristofferC]

Maybe reopen at https://github.com/JuliaRegistries/RegistryTools.jl?

[tkf]

Good idea!