add stream_map_module

Author: subinghong

mainline/alpine/Dockerfile

@@ -49,6 +49,7 @@ RUN GPG_KEYS=B0F4253373F8F6F510D42178520A9993A1C052F8 \
 		--with-compat \
 		--with-file-aio \
 		--with-http_v2_module \
+		--with-stream_map_module \
 	" \
 	&& addgroup -S nginx \
 	&& adduser -D -S -h /var/cache/nginx -s /sbin/nologin -G nginx nginx \