fix(environment): Clone IDF release branches instead of downloading zip and then fastforward

[jakub-kocka]

When the selected IDF branch is the release one, perform git clone instead of downloading a zip archive and fast-forwarding to the latest commit

Releated

• based on the Mattermost discussion (mention in tracker)
• internal tracker: IDF-10228

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Tested

• online IDF Installer (GitHub, Gitee and JihuLab mirrors)
  • release branch (zip archive correctly NOT downloaded -> git clone performed)
  • master branch (zip archive correctly NOT downloaded -> git clone performed)
  • released IDF version (zip archive correctly downloaded)
• offline IDF Installer (working as usual without any issues)

[jakub-kocka]

FYI @leeebo

Honestly, I’m not entirely satisfied with this approach, but given the "feature freeze" (if I understood correctly) on the Windows IDF Installer, it seems like a reasonable compromise without requiring a more complex refactor.

That said, I’m open to any suggestions if you have a better approach in mind guys.

[igrr]

LGTM but I would prefer to remove the code rather than adding conditions and leaving the unused code there.

By the way, do you have any benchmarks, how much time did the old approach take and how much time does the new one take? And I guess it would be good to try this from China as well.

[dobairoland]

LGTM

[jakub-kocka]

@igrr, thanks for the review! I have implemented the changes as you suggested so it should be ready to merge. I have tested the installer and it works as expected.

Unfortunately, I am not able to do the merge as we agreed without your re-review and approval since you are the maintainer and requested a change.

[igrr]

Sorry for the late review, LGTM!

[leeebo]

@jakub-kocka LGTM! Thanks!