[CI] Fix Embree build with dpclang (#22617)
The Embree source needs a small patch to work with `dpclang`, I expect a
real fix will be included in a future release of Embree.
I will ping the dev team about it, For now, lets just apply the patch.
Shown working
[here](https://github.com/intel/llvm/actions/runs/29281131891/job/86929586278).
Closes: https://github.com/intel/llvm/issues/22614
Signed-off-by: Nick Sarnie <nick.sarnie@intel.com>
