chore: use the PR version of the SDK

[anxolin]

General Changes

Adds SDK from this PR cowprotocol/cow-sdk#584

Create this .npmrc and include yout GH TOKEN:

@cowprotocol:registry=https://npm.pkg.github.com/
registry=https://registry.npmjs.org/
//npm.pkg.github.com/:_authToken=<HERE ADD YOUR GH TOKEN>

To get your GitHub token:

1. Go to https://github.com/settings/tokens
2. Click "Generate new token (classic)"
3. Check only the "read:packages" scope
4. Copy the token and replace YOUR_GITHUB_TOKEN in the .npmrc file

[vercel]

@anxolin is attempting to deploy a commit to the Avara Team on Vercel.

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