feat!: esbuild as a peer dependency

[privatenumber]

This allows users to upgrade esbuild independently of esbuild-loader.

This is great because esbuild has a new release every other day.

Unfortunately, this is going to be a breaking change.

Hope to queue this with some other BCs.

Closes #25

[airhorns]

This makes a lot of sense to me, would love to get this in so esbuild can be upgraded independently!

[airhorns]

Oh, I think this commit is actually on master already and this PR can be closed. Would be dandy to get a release with it out!

[privatenumber]

Still holding this because I want to batch it with another breaking change, and also waiting for esbuild v1 because I imagine there's going to be a breaking change there.

Do you want me to do a dependency upgrade release instead?

Alternatively, if you're using yarn, you can use the resolutions feature.

[airhorns]

Oh sorry I was looking at the wrong branch on the root page 😅

No rush, I am just using resolutions :)

[github-actions]

🎉 This PR is included in version 2.4.1-alpha.1 🎉

The release is available on:

• npm package (@next dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[privatenumber]

Adding a note that this might not be a good idea to release till esbuild is v1 (stable) because they can still technically do breaking changes (they did a breaking change on the Node API recently).