[flutter_releases] apply patches to flutter-2.5-candidate.8

[christopherfujino]

fixes flutter/flutter#89598

• "crash in GrMtlCommandBuffer::getBlitCommandEncoder()"
  • Tracking issues: Crash in Metal from MTLReleaseAssertionFailure flutter#89171, b/197827241
  • CP request: b/198731189
  • Fix PR: Started providing the GPU sync switch to Rasterizer.DrawToSurface() #28383
    
• "iOS crash in GrMtlAttachment::onRelease()"
  • Tracking issues: Crash in GrMtlAttachment::onRelease() flutter#89204, b/198231043
  • Fix: https://skia.googlesource.com/skia/+/98ef6cc8b1407111013c7531b554e86d4c5c4ff6 will need to be reverted on Flutter's Skia branch(es)
• Memory usage regression
  • Tracking issues: 20% graphics memory increase in latest roll flutter#88745, b/197437240
  • Fix PR: Revert "Reland enable DisplayList by default" #28308

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[google-cla]

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[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to determine that you authored the commits in this PR. Maybe you used a different email address in the git commits than was used to sign the CLA? If someone else authored these commits, then please add them to this pull request and have them confirm that they're okay with them being contributed to Google. If there are co-authors, make sure they're formatted properly.

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[zanderso]

Is this ready to share with the customer to start their cherry-pick, or is it still building?

[christopherfujino]

Is this ready to share with the customer to start their cherry-pick, or is it still building?

Builds are finished and green, this looks good to go! I'll comment on the cherry-pick request.