Jon Ross-Perkins 0c20fbb0e6 Switch to llvm apt for ubuntu (#2160) ...

We've been encountering issues installing llvm via brew on linux, e.g.:
https://github.com/carbon-language/carbon-lang/runs/8258419618?check_suite_focus=true

```
==> Reinstalling 2 dependents with broken linkage from source:
llvm, mpdecimal
```

(but then llvm doesn't get reinstalled)

This should resolve it:
https://github.com/carbon-language/carbon-lang/runs/8260573590?check_suite_focus=true

2022-09-08 16:41:33 -07:00

..

workflows

Switch to llvm apt for ubuntu (#2160)

2022-09-08 16:41:33 -07:00