Update src/BridgedRoom.ts
Update src/BridgedRoom.ts

Co-authored-by: Will Hunt <37d41699bdee4fcb969ca499eb0f8b82c60d59cc@half-shot.uk>
matrix-org/matrix-appservice-slack,matrix-org/matrix-appservice-slack,matrix-org/matrix-appservice-slack,matrix-org/matrix-appservice-slack