There is a new pull request by non-Jedi against master on the void-packages repository

https://github.com/non-Jedi/void-packages julia-1.6.1
https://github.com/void-linux/void-packages/pull/30703

julia: update to 1.6.1.
Also change to using vendored llvm to reduce maintenance burden from julia depending on
versions of llvm which are quickly obsoleted (closes #30490); this should also fix julia's
build being broken on i686. This doesn't address #29964, and a decision should still be made
on whether to accept #30061.

[ci skip] for building llvm

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [x] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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#### Does it build and run successfully? 
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- [x] I built this PR locally for my native architecture, (x86_64 glibc)
- [ ] I built this PR locally for these architectures (if supported. mark crossbuilds):
  - [ ] aarch64-musl
  - [ ] armv7l
  - [ ] armv6l-musl


A patch file from https://github.com/void-linux/void-packages/pull/30703.patch is attached