Fix for throttle logic. (pointfreeco#3075)

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Revert perception availability changes (pointfreeco#3036)

Bump Perception availability (pointfreeco#3025)

* Bump Perception availability

An upstream fix to Perception needs to be applied here.

* Update ObservationStateRegistrar.swift

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Runtime warn for nested `observe` calls (pointfreeco#2996)

* Runtime warning when we detect nested observe.

* finesse

* wip

* add some tests

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Co-authored-by: Brandon Williams <[email protected]>

Update SwiftSyntax. (pointfreeco#2884)

* Update SwiftSyntax.

* wip

* fix

* wip

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Co-authored-by: Stephen Celis <[email protected]>

Fixed a small typo on migration guide 1.9 (pointfreeco#2876)

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More fixes for @Reducer macro. (pointfreeco#2834)

* More fixes for @Reducer macro.

* wip