Upgrading sentencepiece modeling file (for proto > 4 support).

[Narsil]

What does this PR do?

Upgrades the file.

Taken from google/sentencepiece directly.

Should prevent "Downgrade the protobuf package".

Fixes # (issue)

Before submitting

• [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• [ ] Did you read the contributor guideline, Pull Request section?
• [ ] Was this discussed/approved via a Github issue or the forum? Please add a link to it if that's the case.
• [ ] Did you make sure to update the documentation with your changes? Here are the documentation guidelines, and here are tips on formatting docstrings.
• [ ] Did you write any new necessary tests?

Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag members/contributors who may be interested in your PR.

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[sgugger]

Can you push an empty commit with "[all-test]" in the message? I'd like to see if there is a problem with an older version of protobuf (CI should be on < 4).

[ArthurZucker]

I remember we said we should check if the protobuf version is installed somewhere, as we had some issues. Did it turn out to be ok?

[Narsil]

It turns out the file in https://github.com/google/sentencepiece is actually not even valid protobuf 4.x ...

[sgugger]

So this doesn't work with protobuf 4.x in the end?

[Narsil]

Nope. it passes with protobuf 3.20 in the tests, but not with 4.x.....

I think we should wait for them to upgrade before doing it ourselves (the .proto files are available so we could generate them with a 4.x compiler... but I don't like doing that.) As much as handling 4.x and 3.20 codebases is annoying I don't want to spend much time on this tbh.

I'll close this PR, we can resurrrect later maybe.

[sgugger]

Thanks for having tried!