add Mac hash for MarkupSafe requirements
add Mac hash for MarkupSafe requirements

Change-Id: Ibbc3abd2b84b4a77b90ceec8707776dbc238fa89
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528442
Auto-Submit: Jorge Betancourt <63f45fa27f6ebe96d0924e755262c906d4cb18db@google.com>
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Jorge Betancourt <63f45fa27f6ebe96d0924e755262c906d4cb18db@google.com>

google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia