feat(agents): granite 3.1 support

[michael-desmond]

Which issue(s) does this pull-request address?

Contributes-to: https://github.com/i-am-bee/internal/issues/19

Adds support for Granite 3.1. Drops 3.0 support.
Updates granite examples.

This needs to be merged on Wed 18th to coincide with broader release.

Checklist

• I have read the contributor guide
• I have signed off on my commit
• Linting passes: yarn lint or yarn lint:fix
• Formatting is applied: yarn format or yarn format:fix
• Unit tests pass: yarn test:unit
• E2E tests pass: yarn test:e2e
• Tests are included
• Documentation is changed or added
• Commit messages and PR title follow conventional commits

[JanPokorny]

@michael-desmond just fyi you can use a draft mode PR, that's the native way of "DONT MERGE YET"

[grahamwhiteuk]

@JanPokorny the reason we used "don't merge yet" in the title is because both @michael-desmond and myself are on vacation tomorrow when the release is happening. We need one of the @i-am-bee/framework-developers to merge in our absence.

[michael-desmond]

Thanks @JanPokorny I didnt know about draft PRs. @Tomas2D can you take a look at this one, we want to merge it on wed to coincide with the broader granite release. Good to have it pass you before then. Thx.

[Tomas2D]

Why we want to drop 3.0?

[grahamwhiteuk]

Watsonx has dropped support for 3.0 so it's not possible to access that model using one of our major llm providers. Hence, the decision was taken to mirror here in Bee.