pass ARG to DEV image

Dockerfile.nightly

@@ -3,6 +3,7 @@ ARG DEVPLATFORM=${TARGETPLATFORM:-linux/amd64}
 FROM --platform=$DEVPLATFORM node:15-alpine AS dev
 
 # Install pre-requisites
+ARG DEVPLATFORM
 RUN echo DEVPLATFORM: $DEVPLATFORM \
  && case $DEVPLATFORM in \
     *arm*) apk add --no-cache git python3 build-base ;; \