feat: add support for Base Mainnet and Goerli [APE-1338]

[fubuloubu]

What I did

Alchemy added Base support earlier today, so this adds support to the plugin

How I did it

How to verify it

Checklist

• [x] Passes all linting checks (pre-commit and CI jobs)
• [x] New test cases have been added and are passing
• [x] Documentation has been updated
• [x] PR title follows Conventional Commit standard (will be automatically included in the changelog)

[linear[bot]]

APE-1338 "feat: add support for Base Mainnet and Goerli" (ApeWorX/ape-alchemy #58)

### What I did Alchemy added Base support earlier today, so this adds support to the plugin ### How I did it ### How to verify it ### Checklist * [ ] Passes all linting checks (pre-commit and CI jobs) * [ ] New test cases have been added and are passing * [ ] Documentation has been updated * [ ] PR title follows [Conventional Commit](https://www.conventionalcommits.org/en/v1.0.0/) standard (will be automatically included in the changelog) --- [ApeWorX/ape-alchemy #58](https://github.com/ApeWorX/ape-alchemy/pull/58) by [fubuloubu](https://github.com/fubuloubu) on GitHub *via LinearSync*