Update module github.com/livekit/server-sdk-go to v1.1.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/livekit/server-sdk-go	v1.1.7 -> v1.1.8

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Release Notes

livekit/server-sdk-go (github.com/livekit/server-sdk-go)

### [`v1.1.8`](https://togithub.com/livekit/server-sdk-go/compare/v1.1.7...v1.1.8) [Compare Source](https://togithub.com/livekit/server-sdk-go/compare/v1.1.7...v1.1.8)

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Configuration

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