Automatically download missing packages from repo.magento.com every day

[fballiano]

This PR adds:

• bin/download-all-missing-packages-from-repo-magento-com.php that looks for the lastest patch release for every mirrored release and download the missing packages from repo.magento.com
• adds a workflow running at midnight (or manually) that executes the script above and, if there are changes, it creates a PR to add the downloaded packages

The downloader script has been tested and it works correctly, the workflow (as it is) it's really hard to test

[Vinai]

Wow, this is a great idea @fballiano!

[Vinai]

Al long as we check the packages in the PRs the first few times with extra care this LGTM!

[Vinai]

I'll wait for your approval, too, before merging @rhoerr

[rhoerr]

I've not personally tested to verify, but the code and concept seem good to me in principle. Let's try it.

Great idea, thank you Fabrizio. This will make mirror management a bunch easier.

[rhoerr]

Workflow fails with an error in "Run mirror script":

https://github.com/mage-os/generate-mirror-repo-js/actions/runs/15265699566/job/42930858142

Error: Cannot find module 'parse-options'
Require stack:
- /home/runner/work/generate-mirror-repo-js/generate-mirror-repo-js/src/make/mirror.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1212:15)
    at Module._load (node:internal/modules/cjs/loader:1043:27)
    at Module.require (node:internal/modules/cjs/loader:1298:19)
    at require (node:internal/modules/helpers:182:18)
    at Object.<anonymous> (/home/runner/work/generate-mirror-repo-js/generate-mirror-repo-js/src/make/mirror.js:2:22)
    at Module._compile (node:internal/modules/cjs/loader:1529:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:16[13](https://github.com/mage-os/generate-mirror-repo-js/actions/runs/15265699566/job/42930858142#step:6:14):10)
    at Module.load (node:internal/modules/cjs/loader:1275:32)
    at Module._load (node:internal/modules/cjs/loader:1096:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:[16](https://github.com/mage-os/generate-mirror-repo-js/actions/runs/15265699566/job/42930858142#step:6:17)4:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/runner/work/generate-mirror-repo-js/generate-mirror-repo-js/src/make/mirror.js'
  ]
}

Node.js v20.19.1

[fballiano]

@rhoerr #216 should fix it