change i386 to arm32v7 docker

build-docker.sh

@@ -78,7 +78,7 @@ BUILD_OPTS="$(echo "${BUILD_OPTS:-}" | sed -E 's@\-c\s?([^ ]+)@-c /config@')"
 # Check the arch of the machine we're running on. If it's 64-bit, use a 32-bit base image instead
 case "$(uname -m)" in
   x86_64|aarch64)
-    BASE_IMAGE=i386/debian:bullseye
+    BASE_IMAGE=arm32v7/debian:bullseye
     ;;
   *)
     BASE_IMAGE=debian:bullseye