Fix the haproxy container build.

For this it is necessary to abandon go get to download k8s-crt-dnldr,
and use git clone && make instead. The reasons for that are detailed
in commit message fe1fc4f of the k8s-crt-dnldr repo.

container/Dockerfile.haproxy

@@ -8,9 +8,8 @@ RUN go get -d -v github.com/slimhazard/gogitversion && \
     cd /go/src/github.com/slimhazard/gogitversion && \
     make install
 
-RUN go get -d -v code.uplex.de/k8s/k8s-crt-dnldr/cmd
-
-RUN cd /go/src/code.uplex.de/k8s/k8s-crt-dnldr && make k8s-crt-dnldr
+RUN cd /go && git clone https://code.uplex.de/k8s/k8s-crt-dnldr.git && \
+    cd /go/k8s-crt-dnldr && make k8s-crt-dnldr
 
 RUN cd /go && git clone https://github.com/haproxytech/dataplaneapi.git && \
     cd /go/dataplaneapi && git checkout ${dataplane_version} && make build
@@ -20,7 +19,7 @@ FROM debian:${debian_tag}
 
 COPY buster-backports.list /etc/apt/sources.list.d/
 
-ARG haproxy_version=2.2.9-1~bpo10+1
+ARG haproxy_version=2.2.9-2~bpo10+1
 
 RUN apt-get update -q && \
     apt-get install -y -q haproxy=${haproxy_version} && \
@@ -29,7 +28,7 @@ RUN apt-get update -q && \
     rm -rf /var/lib/apt/lists/* && rm -rf /etc/haproxy/errors && \
     rm -rf /usr/share/doc && rm -rf /usr/share/man
 
-COPY --from=builder /go/src/code.uplex.de/k8s/k8s-crt-dnldr/k8s-crt-dnldr /usr/bin/
+COPY --from=builder /go/k8s-crt-dnldr/k8s-crt-dnldr /usr/bin/
 COPY --from=builder /go/dataplaneapi/build/dataplaneapi /usr/bin/
 COPY haproxy.cfg /etc/haproxy/
 RUN /bin/chmod 755 /usr/bin/dataplaneapi