The format of the Xcode preferences has changed, so we need to account
for the new format when looking up the default development team.
The account identifier (previously an email address) was not used by
any consumers of the provisioningTeams() function, so it was left out.
Pick-to: 6.5
Change-Id: I81a400000615594336e14c95db86ffa71a5c5ff9
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit 380a9fdc872e14e537f3e148c7a1e72be5face2d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 761d516fd4ee10fe943a54743795a91c1d9d3acc)