Include velero-restore-helper binary in velero image (openshift#374)

Author: sseago

Dockerfile.ubi

@@ -10,6 +10,7 @@ COPY . /go/src/github.com/vmware-tanzu/velero
 WORKDIR /go/src/github.com/vmware-tanzu/velero
 
 RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -mod=mod -ldflags '-extldflags "-static" -X github.com/vmware-tanzu/velero/pkg/buildinfo.Version=konveyor-dev' -o /go/src/velero github.com/vmware-tanzu/velero/cmd/velero
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -mod=mod -ldflags '-extldflags "-static"' -o /go/src/velero-restore-helper github.com/vmware-tanzu/velero/cmd/velero-restore-helper
 RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -mod=mod -ldflags '-extldflags "-static"' -o /go/src/velero-helper github.com/vmware-tanzu/velero/cmd/velero-helper
 
 FROM --platform=$BUILDPLATFORM quay.io/konveyor/builder:ubi9-latest AS restic-builder
@@ -30,6 +31,7 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -mod=
 FROM registry.access.redhat.com/ubi9-minimal
 RUN microdnf -y update && microdnf -y install nmap-ncat && microdnf -y reinstall tzdata && microdnf clean all
 COPY --from=builder /go/src/velero velero
+COPY --from=builder /go/src/velero-restore-helper velero-restore-helper
 COPY --from=builder /go/src/velero-helper velero-helper
 COPY --from=restic-builder /opt/app-root/src/restic /usr/bin/restic