[graphite] Apply colorSpace to runtime effect's uniforms Bug: b/239959460 Change-Id: If2c0b4c75f425ed76ed4afe590f9a3e4fdb56c96 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/639296 Commit-Queue: Robert Phillips <robertphillips@google.com> Reviewed-by: James Godfrey-Kittle <jamesgk@google.com>