CodeQL autobuild uses the makefile, but outside of a container, so let's
set this variable to prevent it having to wait 10 seconds;
Use "make dev" to start an interactive development container,
use "make -f docker.Makefile " to execute this target
in a container, or set DISABLE_WARN_OUTSIDE_CONTAINER=1 to
disable this warning.
Press Ctrl+C now to abort, or wait for the script to continue..
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>