Fix text update recomputing in @preact/signals 1.3.x

[developit]

We could have just checked the value against a local variable, but that would leave the computeds re-running unnecessarily.

Note that this would be patch - @preact/[email protected], as main is already at least a minor version ahead (or major).

[changeset-bot]

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Latest commit: efc56d1

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[JoviDeCroock]

This needs a changeset, can look at CI failure later. Signals uses automated publishing but we could do a manual one for this