treewide: switch to gomod and bump everything

This switches version resolution from fietsje to gomod and updates
all Go dependencies. It also bumps rules_go (required by gVisor) and
switches the Gazelle naming convention from go_default_xxx to the
standard Bazel convention of the default target having the package
name.

Since Kubernetes dropped upstream Bazel support and doesn't check in
all generated files I manually pregenerated the OpenAPI spec. This
should be fixed, but because of the already-huge scope of this CL
and the rebase complexity this is not in here.

Change-Id: Iec8ea613d06946882426c2f9fad5bda7e8aaf833
Reviewed-on: https://review.monogon.dev/c/monogon/+/639
Reviewed-by: Sergiusz Bazanski <serge@monogon.tech>
Reviewed-by: Leopold Schabel <leo@nexantic.com>
diff --git a/metropolis/node/core/BUILD.bazel b/metropolis/node/core/BUILD.bazel
index 651e9df..6d2c9c3 100644
--- a/metropolis/node/core/BUILD.bazel
+++ b/metropolis/node/core/BUILD.bazel
@@ -1,7 +1,7 @@
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
 
 go_library(
-    name = "go_default_library",
+    name = "core_lib",
     # keep
     srcs = [
         "main.go",
@@ -19,30 +19,30 @@
     importpath = "source.monogon.dev/metropolis/node/core",
     visibility = ["//visibility:private"],
     deps = [
-        "//metropolis/node:go_default_library",
-        "//metropolis/node/core/cluster:go_default_library",
-        "//metropolis/node/core/localstorage:go_default_library",
-        "//metropolis/node/core/localstorage/declarative:go_default_library",
-        "//metropolis/node/core/network:go_default_library",
-        "//metropolis/node/core/network/hostsfile:go_default_library",
-        "//metropolis/node/core/roleserve:go_default_library",
-        "//metropolis/node/core/time:go_default_library",
-        "//metropolis/pkg/logtree:go_default_library",
-        "//metropolis/pkg/supervisor:go_default_library",
-        "//metropolis/pkg/tpm:go_default_library",
-        "//metropolis/proto/api:go_default_library",
-        "@com_github_containerd_containerd//:go_default_library",
-        "@com_github_containerd_containerd//namespaces:go_default_library",
+        "//metropolis/node",
+        "//metropolis/node/core/cluster",
+        "//metropolis/node/core/localstorage",
+        "//metropolis/node/core/localstorage/declarative",
+        "//metropolis/node/core/network",
+        "//metropolis/node/core/network/hostsfile",
+        "//metropolis/node/core/roleserve",
+        "//metropolis/node/core/time",
+        "//metropolis/pkg/logtree",
+        "//metropolis/pkg/supervisor",
+        "//metropolis/pkg/tpm",
+        "//metropolis/proto/api",
+        "@com_github_containerd_containerd//:containerd",
+        "@com_github_containerd_containerd//namespaces",
         "@org_golang_google_grpc//:go_default_library",
-        "@org_golang_google_grpc//codes:go_default_library",
-        "@org_golang_google_grpc//status:go_default_library",
-        "@org_golang_x_sys//unix:go_default_library",
+        "@org_golang_google_grpc//codes",
+        "@org_golang_google_grpc//status",
+        "@org_golang_x_sys//unix",
     ],
 )
 
 go_binary(
     name = "core",
-    embed = [":go_default_library"],
+    embed = [":core_lib"],
     pure = "on",  # keep
     visibility = ["//metropolis/node:__pkg__"],
 )