message: fix: add return types for TeamsAPI method type definitions
diff: @@ -496,12 +496,12 @@ declare namespace botkit {
  id: string;
  }
  interface TeamsAPI {
  - getUserById(conversationId: string, userId: string, cb: (err: Error, user_profile: any) => void);
  - getUserByUpn(conversationId: string, upn: string, cb: (err: Error, user_profile: any) => void);
  - getConversationMembers(conversationId: string, cb: (err: Error, members: any[]) => void);
  - getTeamRoster(teamId: string, cb: (err: Error, members: any[]) => void);
  - updateMessage(conversationId: string, messageId: string, replacement: TeamsMessage, cb: (err: Error, results: any) => void)
  - getChannels(teamId: string, cb: (err: Error, channels: any[]) => void);
  + getUserById(conversationId: string, userId: string, cb: (err: Error, user_profile: any) => void): void;
  + getUserByUpn(conversationId: string, upn: string, cb: (err: Error, user_profile: any) => void): void;
  + getConversationMembers(conversationId: string, cb: (err: Error, members: any[]) => void): void;
  + getTeamRoster(teamId: string, cb: (err: Error, members: any[]) => void): void;
  + updateMessage(conversationId: string, messageId: string, replacement: TeamsMessage, cb: (err: Error, results: any) => void): void;
  + getChannels(teamId: string, cb: (err: Error, channels: any[]) => void): void;
  }
  interface TeamsAttachment {
  content: TeamsAttachmentContent;
  