Fix error on uwsgi on builder step

[ntdt]

Add build-essential package to fix the error to build docker image.

#7 5.756    command: /usr/local/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-wheel-7rebscv4/uwsgi_9eaa3a3ebfcb4f88a3bbeb470b19e43a/setup.py'"'"'; __file__='"'"'/tmp/pip-wheel-7rebscv4/uwsgi_9eaa3a3ebfcb4f88a3bbeb470b19e43a/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-wnrqrnjb

[ajnisbet]

Thanks!!