[2.1.0]bump websdk to 4.20.0

[guoxianzhe]

No description provided.

[github-actions]

Coverage Summary for `./packages/agora-rtc-react`

Status	Category	Percentage	Covered / Total
🔵	Lines	95.15%	2516 / 2644
🔵	Statements	95.15%	2516 / 2644
🔵	Functions	86.95%	40 / 46
🔵	Branches	88.98%	210 / 236

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
packages/agora-rtc-react/src/error.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/index.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/types.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/components/LocalAudioTrack.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/LocalUser.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/LocalVideoTrack.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/RemoteAudioTrack.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/RemoteUser.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/RemoteVideoTrack.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/components/TrackBoundary.tsx	67.29%	88.88%	50%	67.29%	21-60, 87-94, 116-117, 148-149
packages/agora-rtc-react/src/components/UserCover.tsx	95.83%	50%	100%	95.83%	43-44
packages/agora-rtc-react/src/hooks/events.ts	93.29%	100%	0%	93.29%	417-436, 522-537
packages/agora-rtc-react/src/hooks/useConnectionState.ts	92.15%	44.44%	100%	92.15%	37-38, 46-47
packages/agora-rtc-react/src/hooks/useCurrentUID.ts	95.12%	75%	100%	95.12%	31-32
packages/agora-rtc-react/src/hooks/useIsConnected.ts	89.36%	50%	100%	89.36%	35-37, 42-43
packages/agora-rtc-react/src/hooks/useJoin.ts	98.24%	85.71%	100%	98.24%	99-100
packages/agora-rtc-react/src/hooks/useLocalCameraTrack.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/hooks/useLocalMicrophoneTrack.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/hooks/useLocalScreenTrack.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/hooks/useNetworkQuality.ts	95.83%	66.66%	100%	95.83%	43-44
packages/agora-rtc-react/src/hooks/usePublish.ts	93.69%	75%	100%	93.69%	60-65, 68
packages/agora-rtc-react/src/hooks/useRTCClient.tsx	100%	100%	100%	100%
packages/agora-rtc-react/src/hooks/useRTCScreenShareClient.tsx	53.84%	100%	0%	53.84%	13-21, 24-26
packages/agora-rtc-react/src/hooks/useRemoteAudioTracks.ts	98.84%	88%	100%	98.84%	79, 81
packages/agora-rtc-react/src/hooks/useRemoteUserTrack.ts	100%	100%	100%	100%
packages/agora-rtc-react/src/hooks/useRemoteUsers.ts	100%	75%	100%	100%
packages/agora-rtc-react/src/hooks/useRemoteVideoTracks.ts	98.82%	88%	100%	98.82%	78, 80
packages/agora-rtc-react/src/hooks/useVolumeLevel.ts	100%	100%	100%	100%