fix(rootfs/Dockerfile): update golangci-lint installation script (#349)

rootfs/Dockerfile

@@ -95,7 +95,7 @@ RUN \
   && go install -v github.com/haya14busa/goverage@latest \
   && go install -v github.com/mitchellh/gox@latest \
   && go install -v github.com/onsi/ginkgo/ginkgo@v1.16.5 \
-  && curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b ${GOPATH}/bin ${GOLANGCI_LINT_VERSION} \
+  && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b ${GOPATH}/bin ${GOLANGCI_LINT_VERSION} \
   && curl -sSL https://github.com/koalaman/shellcheck/releases/download/${SHELLCHECK_VERSION}/shellcheck-${SHELLCHECK_VERSION}.linux.x86_64.tar.xz \
   | tar -vxJ -C /usr/local/bin --strip=1 \
   && curl -sSL https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip -o /tmp/packer.zip \