feat: use goreleaser

Dockerfile

@@ -1,26 +1,5 @@
-FROM docker.io/library/golang:1.24.2-alpine3.21 AS build
+FROM scratch AS build
 
-ARG GONOPROXY
-ARG GONOSUMDB
-ARG GOPRIVATE
-ARG GOPROXY
-ARG VERSION
+COPY drone-email-* /usr/bin/drone-email
 
-COPY . /workspace
-
-WORKDIR /workspace
-
-RUN set -ex && \
-    apk update && \
-    apk add git make && \
-    make install DESTDIR=/drone-email PREFIX=/usr VERSION=${VERSION}
-
-###############################################################################
-
-FROM docker.io/library/alpine:3.21
-
-RUN apk add --no-cache bash bash-completion ca-certificates tzdata
-
-COPY --from=build /drone-email /
-
-ENTRYPOINT [ "/usr/bin/drone-email" ]
+ENTRYPOINT [ "/usr/bin/drone-email" ]