Fix outputs path (append /bin)

[sebastienvermeille]

Fix outputs path (append /bin)

Changes

• Append /bin to the output.path
  That way it provides a path to a dir which contains protoc executable as expected

The current path value provided by arduino/setup-protoc action requires me to do that workaround:
https://github.com/sebastienvermeille/another-protobuf-maven-plugin/blob/master/.github/workflows/build.yml#L55

I believe it makes sense to have the /bin included so that we benefit directly access to the binaries of protoc.

Note: please before merging this PR could you please add the label HACKTOBERFEST-ACCEPTED to this PR ? That would be greatly appreciated :) Thank's a lot

[alessio-perugini]

@sebastienvermeille 👋 I think appending the /bin in the current path variable is not a good idea for the following reasons:

1. It would be a breaking change for all the users that rely on the output path variable
2. When we extract the protoc archive, it contains 2 folders: bin and include. Although I think it is very rare, it might be that someone wants to have access to the include folder.

We also install the protoc in the PATH env. You should be able to directly call the protoc without any issues.

An option, could be to ship a new output variable called binary containing the full path. (binary=/some/path/bin/protoc) But I'm not convinced about that since we already have 2 ways of accessing that binary.

[sebastienvermeille]

Hi @alessio-perugini ok let's keep it like that then 👍