Bugfix: fix iOS CMake architecture

[SSE4]

closes: #7156

Changelog: Bugfix: fix iOS CMake architecture
Docs: omit

need to set CMAKE_OSX_ARCHITECTURES and CMAKE_OSX_SYSROOT

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[memsharded]

This is broken (the test related to Migrations was broken in develop, but should be fixed now). Please fix it when possible. If we are doing a minor for 1.26, maybe we can submit this fix to it.

[memsharded]

This can be closed, will be merged to develop when 1.26 is released.