Custom download url not use cache

[PittyXu]

Download bun is slowly, I use the custom url like this.

with:
  bun-download-url: "https://**/caches/bun/v1.1.24/bun-linux-x64.zip"
  bun-version: 1.1.24

But it always download from web not from cache.
Expect if cache hit the version, it can use cache, or form local toolcache dir like this.

const tc = require('@actions/tool-cache');

const cachedPath = await tc.cacheDir(extractedFolder, 'bun', '1.1.24');

const bunDirectory = tc.find('bun', '1.1.24', 'x64');

[xhyrom]

We can't ensure that the binary from custom url is always same. Also why you're using custom download url?

[PittyXu]

We can't ensure that the binary from custom url is always same. Also why you're using custom download url?

Downloading is unstable in China

[PittyXu]

I think ensure the binary same should be left up to the user, user specified the custom download and version is that he expects to be able to control the binary.

If a problem occurs, users can correct it themselves.