Update dependency blinker to v1.8.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
blinker	==1.8.0 -> ==1.8.1

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Release Notes

pallets-eco/blinker (blinker)

### [`v1.8.1`](https://togithub.com/pallets-eco/blinker/blob/HEAD/CHANGES.rst#Version-181) [Compare Source](https://togithub.com/pallets-eco/blinker/compare/1.8.0...1.8.1) Released 2024-04-28 - Restore identity handling for `str` and `int` senders. :pr:`148` - Fix deprecated `blinker.base.WeakNamespace` import. :pr:`149` - Fix deprecated `blinker.base.receiver_connected import`. :pr:`153` - Use types from `collections.abc` instead of `typing`. :pr:`150` - Fully specify exported types as reported by pyright. :pr:`152`

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