m/n/c/curator: listen on public gRPC

This enables listening on CuratorPort (which was called
NodeServicePort) using TLS node certificates. No service is yet running
on the new gRPC listener.

Change-Id: I436ac1ae9cbdb257419ad114262fc2a7516396b1
Reviewed-on: https://review.monogon.dev/c/monogon/+/288
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/metropolis/node/core/cluster/BUILD.bazel b/metropolis/node/core/cluster/BUILD.bazel
index 322a337..a68f63c 100644
--- a/metropolis/node/core/cluster/BUILD.bazel
+++ b/metropolis/node/core/cluster/BUILD.bazel
@@ -23,6 +23,7 @@
         "//metropolis/proto/api:go_default_library",
         "//metropolis/proto/common:go_default_library",
         "//metropolis/proto/private:go_default_library",
+        "@org_golang_google_grpc//credentials:go_default_library",
         "@org_golang_google_protobuf//proto:go_default_library",
     ],
 )