Update to latest node LTS: 16.14.0 (#1395)

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:14.17.3
+FROM node:16.14.0
 
 ARG BACKSTOPJS_VERSION
 
@@ -29,6 +29,7 @@ RUN apt-get -qqy update \
     fonts-liberation \
     fonts-ipafont-gothic \
     fonts-wqy-zenhei \
+    libgbm-dev \
     gconf-service libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxss1 libxtst6 libappindicator1 libnss3 libasound2 libatk1.0-0 libc6 ca-certificates fonts-liberation lsb-release xdg-utils wget \
   && rm -rf /var/lib/apt/lists/* \
   && apt-get -qyy clean