[llvm] [llvm][utils] Correct release package links for Windows (PR #215770)

[Cullen Rhodes via llvm-commits]

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c-rhodes wrote:

needs updating?
```suggestion
Except for Windows. Where `LLVM-*.msi` is an installer intended for using LLVM as a toolchain and the archive `clang+llvm-` contains the contents of the installer, plus libraries and tools not normally used in a toolchain. You most likely want the `LLVM-` installer, unless you are developing software which itself uses LLVM, in which case choose `clang+llvm-`.
```

https://github.com/llvm/llvm-project/pull/215770