Latest stable protoc version

[pdebakker-auguria]

Describe the problem

The readme states

To get the latest stable version of protoc just add this step:

- name: Install Protoc
  uses: arduino/setup-protoc@v3

But this installs version 23.4, while the latest version is 26.0.

When I look at the default version value in action.yml, I see it is set to 23.x. Is it possible to update this version, and maybe even somehow always get the latest value without having to hardcode it?

To reproduce

use arduino/setup-protoc@v3 this gives protoc with version 23.x

Expected behavior

Version 26.0 of protoc

'arduino/setup-protoc' version

3

Additional context

No response

Issue checklist

• [X] I searched for previous reports in the issue tracker
• [X] I verified the problem still occurs when using the latest version
• [X] My report contains all necessary details

[alessio-perugini]

@pdebakker-auguria Absolutely! Right now, I cannot guarantee that we have enough bandwidth to work on this in the upcoming days. :pray: If you or someone else would like to contribute to this would be awesome! :star_struck:

Regardless of who will implement this, I'll give here some implementation notes:

• Change the default value to latest https://github.com/arduino/setup-protoc/blob/master/action.yml#L7
• If the version variable is latest implement the logic to retrieve and use the latest version. We should change it here https://github.com/arduino/setup-protoc/blob/master/src/installer.ts#L210-L239
• Add a dedicated test