Roll Flutter Engine from 7dcbd93e5c1a to 13a561cb6d5a (6 revisions) (…

…#148274)

flutter/engine@7dcbd93...13a561c

2024-05-13 [email protected] [Impeller] rectangle packer actually packs. (flutter/engine#52781)
2024-05-13 [email protected] Roll Skia from 75b3286ecaac to 400c6fbeace8 (6 revisions) (flutter/engine#52783)
2024-05-13 [email protected] ios_external_view_embedder to ARC (flutter/engine#52782)
2024-05-13 [email protected] Roll Dart SDK from a0a940f07d56 to 7c7767ecc3d7 (2 revisions) (flutter/engine#52777)
2024-05-13 [email protected] Remove outdated comment. (flutter/engine#52778)
2024-05-13 [email protected] [Impeller] Prepare a SkiaGPU-less iOS build. (flutter/engine#52748)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC [email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

bin/internal/engine.version

@@ -1 +1 @@
-7dcbd93e5c1a4d74a1aa3ca46ba754b0e2ba1bd1
+13a561cb6d5a583bfc8669c9577f9ac043cd55f4