tree f1885692a62fbc481a774cf8363e3733a7b7a9d6
parent 24d8322bbaa9d396ec201140004cdf8fc8a818f4
author stuartmorgan <stuartmorgan@google.com> 1646682740 -0500
committer GitHub <noreply@github.com> 1646682740 -0800
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[ci] Update to Xcode 13 everywhere (#1103)

In the previous update PR I missed that there were two places that the macOS image was specified. This fixes that by combining them into a single task entry, and also extracts the macOS tempate, making the structure match flutter/plugins so that updating is consistent across repositories.