Make release

This skill prepares a new release of the web3-ethereum-defi package.

Required inputs

1. Version number - The version string for the new release (e.g., 1.1, 2.0)

Steps

1. Update version in pyproject.toml

Edit the version field in pyproject.toml to the new version number.

2. Update CHANGELOG.md

1. Find the # Current heading in CHANGELOG.md
2. Rename it to # {version} (the new version number)
3. Append today's date in parentheses to every changelog entry in that section that is missing a date