fix build in mock

rpmbuild/SPECS/traefik.spec

@@ -24,6 +24,8 @@ Requires(pre): shadow-utils
 BuildRequires: systemd
 BuildRequires: breezy
 BuildRequires: golang >= 1.15
+BuildRequires: git
+BuildRequires: go-bindata
 
 %description
 %{common_description}
@@ -42,6 +44,10 @@ cp %{S:2} %{name}.yaml
 
 %build
 GO111MODULE=off go get github.com/containous/go-bindata/...
+
+# Workaround for "GOVCS disallows using bzr for public XXX"
+export GOVCS='private:all,public:all'
+
 go generate
 CGO_ENABLED=0 GO111MODULE=on go build -o %{gobuilddir}/traefik %{goipath}/cmd/traefik