Update socket.io packages to v4.8.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
socket.io (source)	4.8.0 -> 4.8.1
socket.io-client (source)	4.8.0 -> 4.8.1

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Release Notes

socketio/socket.io (socket.io)

### [`v4.8.1`](https://redirect.github.com/socketio/socket.io/releases/tag/socket.io-client%404.8.1) [Compare Source](https://redirect.github.com/socketio/socket.io/compare/socket.io@4.8.0...socket.io@4.8.1) ##### Bug Fixes - **bundle:** do not mangle the "\_placeholder" attribute ([ca9e994](https://redirect.github.com/socketio/socket.io/commit/ca9e994815aa2e31e0342e37ccdc2e9e8c5fd13c)) ##### Dependencies - [`engine.io-client@~6.6.1`](https://redirect.github.com/socketio/engine.io-client/releases/tag/6.5.2) (no change) - [`ws@~8.17.1`](https://redirect.github.com/websockets/ws/releases/tag/8.17.1) (no change)

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Configuration

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