https://github.com/sendbird/sendbird-calls-javascript/releases/tag/1.7.2
1.7.2 (October 8, 2021 UTC)
• Added push token registration APIs
• Below methods are added in SendBirdCall
• registerPushToken(pushToken: string, tokenType: TokenType): Promise<void>
• unregisterPushToken(pushToken: string, tokenType: TokenType): Promise<void>
• unregisterAllPushTokens(tokenType: TokenType): Promise<void>
• Below enum is added in SendBirdCall
• TokenType
