update node version in Dockerfile

Dockerfile

@@ -4,7 +4,7 @@ COPY . /opt/build
 
 RUN apt-get update -y \
     && apt-get install build-essential python3-pip curl software-properties-common sed -y \
-    && (curl -sL https://deb.nodesource.com/setup_14.x | bash -) \
+    && (curl -sL https://deb.nodesource.com/setup_current.x | bash -) \
     && apt-get install nodejs \
     && (cd /opt/build; make configuration npm email typescript variants-html bundle-css inline-css swagger copy INTERNAL=off GOESBUILD=on) \
     && sed -i 's#id="password_resets-watch_directory" placeholder="/config/jellyfin"#id="password_resets-watch_directory" value="/jf" disabled#g' /opt/build/build/data/html/setup.html