Upgrade website node to LTS (#30213)

* Upgrade website node to LTS

* Remove npm installation

* Latest npm

Author: damccorm

website/Dockerfile

@@ -44,15 +44,16 @@ RUN apt-get update \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
-# Install node environment
-RUN curl -sL https://deb.nodesource.com/setup_14.x | bash - \
+# Install node LTS environment
+RUN curl -sL https://deb.nodesource.com/setup_lts.x | bash - \
     && apt-get update \
     && apt-get install -y --no-install-recommends \
         nodejs \
-        npm \
     && apt-get autoremove -yqq --purge \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* 
+
+RUN npm update -g npm
 
 RUN npm install postcss postcss-cli autoprefixer