Missing metadata in pyproject.toml

[shirhatti]

The pyproject.toml files for both the goose-ai and ai-exchange packages are missing some common metadata fields. Would you be willing to add the following properties:

[project]
license = "Apache 2.0"
classifiers = [
    "Intended Audience :: Developers",
    "License :: OSI Approved :: Apache Software License",  
]

[project.urls]
Changelog = "https://github.com/block/goose/blob/main/CHANGELOG.md"
Documentation = "https://block.github.io/goose/"
Homepage = "https://github.com/block/goose/"
Source = "https://github.com/block/goose/"

I'm not entirely familiar with conventions around classifiers but I presume there are a few more that'll be applicable.

Happy to submit a PR if needed!