fix: need curl to download golangci/golangci-lint (#212)

Author: juancarlostong

scripts/dockerfiles/Dockerfile.alpine

@@ -1,7 +1,7 @@
 ARG GO_VERSION
 FROM golang:$GO_VERSION-alpine3.10 as builder
 # hadolint ignore=DL3018
-RUN apk add --no-cache make gcc libc-dev git
+RUN apk add --no-cache make gcc libc-dev git curl
 WORKDIR /go/src/github.com/optimizely/agent
 COPY . .
 RUN make setup build