[graphite] Disable lighten/darken test IntelUHD630

* Disable test until bug can be fixed.

Bug: b/449171614
Change-Id: Ie6211f8816796ea3e14f857659cd98b58938a897
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1067656
Commit-Queue: Thomas Smith <thomsmit@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
2 files changed