updated mermaid filter

pandoc/Dockerfile

@@ -20,7 +20,7 @@ ENV CHROME_BIN="/usr/bin/chromium-browser" \
     PUPPETEER_SKIP_CHROMIUM_DOWNLOAD="true"
 
 RUN apk add --update udev ttf-freefont chromium npm make openssh-client rsync \
-    && npm install -g mermaid-filter@1.4.5 --unsafe-perm=true
+    && npm install -g mermaid-filter@1.4.6 --unsafe-perm=true
 
 RUN apk add --update python3 py3-pip \
     && python3 -m pip install pip --upgrade \