[libcxx-commits] [libcxx] [llvm] [libc++] Adjust the docker-compose file for libc++ action builders (PR #116366)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@tstellar @boomanaiden154  I am encountering this issue when the action tries pushing ([here](https://github.com/llvm/llvm-project/actions/runs/11854470417/job/33036694925?pr=116366)):

```
 Pushing ghcr.io/llvm/libcxx-linux-builder:e016be98755e751af0b0b0af84dbfc2ba0b1ff68: 3e5e74ba8df3 Layer already exists 
 Pushing ghcr.io/llvm/libcxx-linux-builder:e016be98755e751af0b0b0af84dbfc2ba0b1ff68: e3ea085120e9 Layer already exists 
denied: installation not allowed to Create organization package
Error: Process completed with exit code 1.
```

Is this something you've seen before and perhaps you remember how to fix it off the top of your head? I looked around and I made sure that the workflow had the `packages: write` permission but that doesn't seem to cut it.

https://github.com/llvm/llvm-project/pull/116366