fix(helm): convert to typescript

[JamieMagee]

See #1261

[rarkins]

What was the reason for needing to switch the return value from being an object to it being an array?

[JamieMagee]

The previous return type was:

interface RepositoryData {
  [key: string]: {
    version: string;
    homepage: string;
    sources: string[];
    urls: string[]
  }[]
}

Compared with ReleaseResult that we use everywhere else:

interface ReleaseResult {
  name: string;
  homepage: string;
  sourceUrl: string;
  releases: {
    version: string;
    ....
  }[]
  ...
}

It was just much easier to re-use the interface we use everywhere else, including the calling method, instead of creating a new type specifically for Helm.

[rarkins]

Thanks, I missed that

[rarkins]

Somehow we got a conflict?

[JamieMagee]

Not sure what the conflict was. I rebased locally, but there were no conflicts?

[renovate-release]

🎉 This PR is included in version 19.67.11 🎉

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