Protoc library download sequence is in wrong order

[joonas-fi]

The sections are disconnected from each other and thus it's not happening in the order we try to it to be in.. maybe it still does work but it's Fugly.

buildkit-golang/Dockerfile

Lines 18 to 37 in e21b85e

	RUN apt update && apt install -y zip \
	&& go install golang.org/x/tools/cmd/goimports@latest \
	&& go install golang.org/x/tools/cmd/godoc@latest \
	&& go install golang.org/x/tools/gopls@latest \
	&& go install github.com/function61/deployer/cmd/deployer@latest \
	&& go install github.com/rogpeppe/gohack@latest \
	&& go install google.golang.org/protobuf/cmd/protoc-gen-go@latest \
	&& wget https://github.com/protocolbuffers/protobuf/releases/download/v3.17.3/protoc-3.17.3-linux-x86_64.zip \
	&& unzip protoc-3.17.3-linux-x86_64.zip && mv bin/protoc /usr/local/bin/ && cd / && rm -rf /tmp/protoc \
	&& ln -s /workspace/gohack /root/gohack \
	&& curl --fail --location -o /go/bin/depth https://github.com/KyleBanks/depth/releases/download/v1.2.1/depth_1.2.1_linux_amd64 \
	&& chmod +x /go/bin/depth \
	&& curl --fail --location https://function61.com/app-dl/api/github.com/golangci/golangci-lint/latest_releases_asset/golangci-lint-%2A-linux-amd64.tar.gz \
	| tar --strip-components=1 -C /usr/local/bin -xzf - --wildcards 'golangci-lint-*-linux-amd64/golangci-lint' \
	&& rm -rf /go/pkg \
	&& mkdir /tmp/protoc && cd /tmp/protoc \
	&& curl --fail --location https://github.com/abhinav/doc2go/releases/download/v0.8.1/doc2go-linux-amd64.tar.gz | tar -C /usr/local/bin/ -xzf - doc2go \
	&& ln -s /usr/bin/build-go-project.sh /build-common.sh \
	&& git config --global --add safe.directory /workspace \
	&& true