Update Dockerfile

[flo-kn]

clostes #154

Boyscouting all the way! 🧹:)

Latest gatsby fails to install with node version 14. Upgrade to 16

The build command docker build -f scripts/Dockerfile -t eda-nodes-env . fails:

76.58 npm ERR! Exit status 1
76.58 npm ERR! 
76.58 npm ERR! Failed at the sharp@0.32.6 install script.
76.58 npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
76.60 
76.60 npm ERR! A complete log of this run can be found in:
76.60 npm ERR!     /root/.npm/_logs/2024-03-18T08_33_48_661Z-debug.log
------
Dockerfile:3
--------------------
   1 |     FROM node:14.16
   2 |     RUN npm install -g gatsby-cli
   3 | >>> RUN npm install -g gatsby
   4 |     RUN npm install -g gatsby-theme-carbon
   5 |     EXPOSE 8000
--------------------
ERROR: failed to solve: process "/bin/sh -c npm install -g gatsby" did not complete successfully: exit code: 1

Upgrading to Node16 fixes the issue