yarn prod-build in keyserver is supposed to call yarn update-geoip, but this call fails in the Docker environment beacuse that call doesn't have access to the GeoIP license. This diff makes sure we forward that environment variable to the Docker build environment (instead of only being available in the production environment).

cd keyserver && ./bash/dc.sh up --build, with keyserver/.env populated with COMM_JSONCONFIG_secrets_geoip_license env var set. Monitor output and make sure update-geoip runs. It took about 3 minutes on my MBP, probably will take 5-6 minutes in prod