Automate updates

[StevenACoffman]

Hey, thanks for sharing this! I have gotten a lot of great use out of this, but I would like to automate updating it when a new version of protoc comes out.

I can use a scheduled GitHub action to get the latest protoc release with:

gh release list --repo protocolbuffers/protobuf --limit 1 --json tagName,isLatest --jq '.[] | select(.isLatest)|.tagName' | cat
# output: v29.3

Is there interest in that? Or do you wish to manually update protoc and the plugins?

[ealves-pt]

Hey @StevenACoffman completely missed this thread. I was not expecting this to be in use by anyone besides me 😅.

I just released a revised version with a bunch of updates and I could have used your PR.

If you want to update your PR I will happily merge it.