llvm-julia-16.0.6-2.tar.gz checksum fail

[semarie]

While building julia with USE_BINARYBUILDER=0, the llvm tarball fetched is llvm-julia-16.0.6-2.tar.gz, and it failed the checksum check.

the deps/checksums/llvm has been updated by #53195, and the downloaded file currently match the previous hash.

I am unsure if:

• the fetched file isn't the right one because the PR updated llvm to 16.0.6+4 (and we are fetching 16.0.6-2)
• the fetched file isn't the right one because the file should have been updated too (and it wasn't)
• the fetched file is the right one and the checksum change is unintented

Cc @gbaraldi and @vchuravy who worked on the llvm update

[vchuravy]

The source hash should not have changed. Since https://github.com/JuliaLang/llvm-project/tags is still on 16.0.6-2 and 16.0.6+4 was a pure build change in Yggdrasil. I am unsure why contrib/update_checksums messed that up.

[ararslan]

We can't build the source distribution tarballs for v1.11.0-alpha1 because of this as they require USE_BINARYBUILDER=0.