feat(changesets-renovate): filter out private packages

[silouanwright]

In a monorepo, people may choose to have some packages published, and keep other packages private.

Private packages (which are represented with a private: true key) ideally shouldn't be published. An example below:

{
  "name": "@scope/package-name",
  "version": "0.0.0",
  "private": true,
  "description": "An internal package for providing a shared configuration to apps",
  "main": "./index.js",
}

In the original GitHub Action from Backstage this is based off, the code is in fact filtering out private packages:

// Parses package.json files and returns the package names
async function getPackagesNames(files) {
  const names = [];
  for (const file of files) {
    const data = JSON.parse(await fs.readFile(file, "utf8"));
    if (!data.private) { // ← It only grabs the package if it's not private.
      names.push(data.name);
    }
  }
  return names;
}

Would love to see that functionality represented in this package as well.

[changeset-bot]

🦋 Changeset detected

Latest commit: d4baef6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@scaleway/changesets-renovate	Minor

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