message: Update uploadContent type definition
  This didn't match the matrix-js-sdk signature.
diff: @@ -227,12 +227,11 @@ declare module 'matrix-appservice-bridge' {
  };
  deleteAlias(alias: string): Promise<void>;
  roomState(roomId: string): Promise<any[]>;
  - uploadContent(opts: {
  - stream: Buffer
  + uploadContent(file: Buffer, opts: {
  name: string,
  type: string,
  - rawResponse: false,
  - onlyContentUri: true,
  + rawResponse: boolean,
  + onlyContentUri: boolean,
  }): Promise<string>;
  }
  