docs: for pull #2131, fixed 2 outdated doc(s)

[joggrbot]

✨ Autofixed 2 outdated doc(s)

This pull was automatically generated by Joggr to fix 2 outdated doc(s) due to code changes in pull #2131

Fixed docs

The following docs were fixed:

• website/snippets/python-examples/swarmgroupchat.mdx: The API now expects messages as a list of dicts (not a simple string); this change ensures the example uses the correct message format.
• website/snippets/python-examples/sequentialchat.mdx: The documentation previously showed the 'message' argument as a string, but the codebase now requires it to be a list of dicts with 'content' and 'role'. Updated the example for up-to-date usage.

How to fix

To fix the docs, you can either:

1. Merge this pull request into your pull request to fix the docs
2. Wait for your pull request to be merged and then merge this pull request into your base branch

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[joggrbot]

Due to changes in the base pull ag2ai/ag2#2131 there are no more outdated docs. This generated autofix pull was closed automatically.