metropolis/*: confine etcd output in tests

The etcd test cluster logic produces some very chatty logs that end up
in stdout.

This confines the etcd logs themselves, as well as gRPC logs that the
test logic also always enables by default.

Change-Id: I1070f14b20e870865b510ae24015402c0469ceff
Reviewed-on: https://review.monogon.dev/c/monogon/+/1487
Reviewed-by: Leopold Schabel <leo@monogon.tech>
Tested-by: Jenkins CI
diff --git a/third_party/go/repositories.bzl b/third_party/go/repositories.bzl
index 2b780d7..b58c990 100644
--- a/third_party/go/repositories.bzl
+++ b/third_party/go/repositories.bzl
@@ -6198,6 +6198,10 @@
     go_repository(
         name = "io_etcd_go_etcd_tests_v3",
         importpath = "go.etcd.io/etcd/tests/v3",
+        patch_args = ["-p1"],
+        patches = [
+            "//third_party/go/patches:etcd-integration-logging.patch",
+        ],
         sum = "h1:wiYG8vbDwZO2UatQE9Z3GIv2z52jGg5DvEkTDXm090c=",
         version = "v3.5.4",
     )