fix(deps): update dependency webrtc-adapter to v9

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webrtc-adapter	`^8.0.0` -> `^9.0.0`

Release Notes

webrtchacks/adapter (webrtc-adapter)

### [`v9.0.1`](https://togithub.com/webrtchacks/adapter/compare/v9.0.0...v9.0.1) [Compare Source](https://togithub.com/webrtchacks/adapter/compare/v9.0.0...v9.0.1) ### [`v9.0.0`](https://togithub.com/webrtcHacks/adapter/releases/tag/v9.0.0): 9.0.0 [Compare Source](https://togithub.com/webrtchacks/adapter/compare/v8.2.3...v9.0.0) 9.0.0 brings two breaking changes: - removal of legacy getStats shim: [https://github.com/webrtcHacks/adapter/issues/1137](https://togithub.com/webrtcHacks/adapter/issues/1137) - removal of getDisplayMedia shim: [https://github.com/webrtcHacks/adapter/issues/1139](https://togithub.com/webrtcHacks/adapter/issues/1139) and more importantly it prefers `userAgentData` over `webkitGetUserMedia` for detecting Chromium-based browsers ([#1146](https://togithub.com/webrtchacks/adapter/issues/1146))

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peers / peerjs

fix(deps): update dependency webrtc-adapter to v9 #1266

Release Notes

Configuration