[llvm] [Github][CI] Add quotes to 'find' command argument (PR #162570)

[Baranov Victor via llvm-commits]

vbvictor wrote:

@boomanaiden154, Now the job [fails](https://github.com/llvm/llvm-project/actions/runs/18360684500/job/52304259948) with error:

```
Writing manifest to image destination
Error: writing manifest: uploading manifest latest to ghcr.io/llvm/ci-ubuntu-24.04-format: denied: permission_denied: write_package
```

Googling the problem I found https://github.com/orgs/community/discussions/26274#discussioncomment-3251137, and it suggests to change package settings, but I have only "open issue" button in
https://github.com/llvm/llvm-project/pkgs/container/ci-ubuntu-24.04-format
https://github.com/llvm/llvm-project/pkgs/container/amd64%2Fci-ubuntu-24.04-format:
<img width="508" height="393" alt="image" src="https://github.com/user-attachments/assets/8aa1874d-6ec6-4b1b-9e52-e2030c11543f" />

Could you do this if you have proper rights? Was it a problem before?
P.S. `lint` container should also have such rights, but it isn't pushed to registry yet.

https://github.com/llvm/llvm-project/pull/162570