Roll Skia from 2874f080aaf8 to 343588ddf0e2 (5 revisions)

https://skia.googlesource.com/skia.git/+log/2874f080aaf8..343588ddf0e2

2021-06-22 robertphillips@google.com [ngatoy] Remove duplicate rects array from ClipCmd
2021-06-22 robertphillips@google.com [ngatoy] Record painter's order when clips are popped off the stack
2021-06-22 borenet@google.com Reland "[infra] Roll Infra dep to update CIPD packages" with fix
2021-06-22 johnstiles@google.com Add nullopt to skstd::optional.
2021-06-22 johnstiles@google.com Migrate matrix-inversion code to a dedicated SkMatrixInvert file.

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Bug: b/186777432
Change-Id: Ib1a9fef2f4bb2a3fd5425a7efae8598e575ed6e6