[llvm] [runtimes] Add missing test dependencies to check-all (PR #72955)

[via llvm-commits]

zmodem wrote:

Heads up that we're seeing builds fail with "unknown target 'runtimes-test-depends'" which is most likely due to this. (https://crbug.com/1505361). I'll try to verify that and come up with some kind of reproducer.

https://github.com/llvm/llvm-project/pull/72955