universalize!

Signed-off-by: fbt <fbt@fleshless.org>

makepkg-podman

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-image=${1:-localhost/spark:autobuilder}
+image=${PODMAN_IMAGE:-localhost/spark:autobuilder}
 
 podman_cmd=(
 	podman run --rm -u root
@@ -9,8 +9,7 @@ podman_cmd=(
 	--workdir /buildroot
 	--name "autobuilder.$$"
 	--env "BUILDUSER=$USER"
-	--entrypoint /build
-	"$image"
+	"$image" /build "$@"
 )
 
 "${podman_cmd[@]}"