Try cpython for P30 tasks.

Change-Id: I8644c923fb6df9631e62f29b1363ee7aa1032ced
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221719
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
2 files changed