vcpkg_extract_archive: Use vcpkg.exe z-extract

[JavierMatosD]

Uses vcpkg.exe to unpack 7z.exe archives.

This causes a bug with vcpgk_find_acquire(CLANG) since we are currently downloading its archive as a 7z.exe even though it is not a 7z archive. The tool cannot unpack it.

[JavierMatosD]

vcpkg_find_acquire(7z) should give use the full 7zip as a.7z.exe, the tool should unpack that. ✅

vcpkg fetch 7zip should return full 7zip so we should be able to use 7zip for literally any unpacking. ✅ (We don't need 7zr for anything)

Problem:
vcpkg_find_acquire(CLANG) downloads as a .7z.exe -> triggers tool extraction -> 💣 (not a real 7z archive)

[JavierMatosD]

Changed vcpkg_find_acquire(CLANG) to download as a .exe since it is not a 7z archive. I've opened another PR against the tool that specifically looks for .7z.exe extensions, assuming it is a 7zip archive, and uses the self extractor for those instances. Else, .exe will be extracted using 7zip.

[BillyONeal]

I merged with master due to #42491 merging for a CVE fix

[BillyONeal]

Please do not merge this into master.

Instead, assuming https://github.com/microsoft/vcpkg/ is origin, please:

git fetch origin
git merge origin/master
git reset origin/master
git commit -am "The commit text you're happy to put into vcpkg's history."
git push origin 7z_extraction

and close this PR.

We'll can use that resulting commit SHA in a tool release.

(I would follow the instructions myself but I want you to be listed as the author of the commit and I'm unwilling to git blame-someone-else to do that)

[BillyONeal]

Hmmm.... Azure seems unhappy for some reason. No reason to think those failures are related to changes here yet.

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).