Update chat-linker commit hash

Author: ForNeVeR

omnissiah/chat-linker/Dockerfile

@@ -1,6 +1,6 @@
 FROM node:8.7.0-alpine
 RUN apk update && apk add git
-RUN git clone https://github.com/jt3k/chat-linker.git /usr/app/src && cd /usr/app/src && git checkout 0e72a218bba47710d29bd5101b4b1710f13fd83b
+RUN git clone https://github.com/jt3k/chat-linker.git /usr/app/src && cd /usr/app/src && git checkout 4aab67aa6a59368896d427f14060c59484ff0a37
 RUN cd /usr/app/src && npm install # TODO: Not stable enough; migrate to yarn
 COPY app-config.json /usr/app/src/app-config.json
 WORKDIR /usr/app/src