builder error on recent update

I'm getting an error on builds I haven't seen before, I see there was a new release 17 days ago, wondering if that has something to do with it.

```
FROM abiosoft/caddy:builder as caddy
ENV ENABLE_TELEMETRY=false
ARG CADDY_VERSION="1.0.3"
ARG CADDY_PLUGINS="cors"
RUN VERSION=${CADDY_VERSION} PLUGINS=${CADDY_PLUGINS} /bin/sh /usr/bin/builder.sh
COPY ./Caddyfile /install/Caddyfile
```