swift 6.1

[botantony]

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[Bo98]

Pushed an upstream fix for CMake 4 and a default linker change to match what upstream now do in their own builds as of 6.1.

Looks like no component changes required this time round. Seems like a fairly simple version bump.

[Bo98]

Will follow up with a SwiftPM patch later this week.

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[botantony]

suppressed by #229223