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

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

https://github.com/llvm/llvm-project/actions/runs/18360684500/job/52304955343 succeeded after running ~5 times. It should be good from here on out.

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