Replace RuntimeError with WebSocketDisconnected#2767

ruitcatarino wants to merge 4 commits intoKludex:mainKludex/starlette:mainfrom

ruitcatarino:replace-runtimerror-with-websocketdisconnectedruitcatarino/starlette:replace-runtimerror-with-websocketdisconnectedCopy head branch name to clipboard