Fix building domain proxy.

Author: tecarter94

domain-proxy/Dockerfile.all-in-one

@@ -3,8 +3,8 @@ USER 0
 WORKDIR /work
 COPY ./ .
 
-RUN go build -o domain-proxy-server domain_proxy_server.go common.go
-RUN go build -o domain-proxy-client domain_proxy_client.go common.go
+RUN go build -o domain-proxy-server domain-proxy/domain_proxy_server.go domain-proxy/common.go
+RUN go build -o domain-proxy-client domain-proxy/domain_proxy_client.go domain-proxy/common.go
 
 FROM quay.io/konflux-ci/buildah-task:latest@sha256:5cbd487022fb7ac476cbfdea25513b810f7e343ec48f89dc6a4e8c3c39fa37a2
 USER 0