This reduces the main bundle size by ⚠️ 1.28 MB minified! This bundle is loaded only when caching is enabled.
`setup-python` is used in [`setup-cpp`](https://github.com/aminya/setup-cpp) as a library. This optimization reduces the bundle size for that package as well. The build system of `setup-python` uses `ncc`, which doesn't immediately benefit from this change, but setup-cpp uses `Parcel`, which shows this huge improvement.
The reason for this huge reduction is that caching the dependencies uses the `@actions/cache` package, which is an extremely large package with big dependencies. The bundle size before this separation shows this:
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