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/installer/BUILD.bazel b/metropolis/installer/BUILD.bazel
index f4b125f..989a850 100644
--- a/metropolis/installer/BUILD.bazel
+++ b/metropolis/installer/BUILD.bazel
@@ -4,21 +4,21 @@
 load("//metropolis/node/build:efi.bzl", "efi_unified_kernel_image")
 
 go_library(
-    name = "go_default_library",
+    name = "installer_lib",
     srcs = ["main.go"],
     importpath = "source.monogon.dev/metropolis/installer",
     visibility = ["//visibility:private"],
     deps = [
-        "//metropolis/node/build/mkimage/osimage:go_default_library",
-        "//metropolis/pkg/efivarfs:go_default_library",
-        "//metropolis/pkg/sysfs:go_default_library",
-        "@org_golang_x_sys//unix:go_default_library",
+        "//metropolis/node/build/mkimage/osimage",
+        "//metropolis/pkg/efivarfs",
+        "//metropolis/pkg/sysfs",
+        "@org_golang_x_sys//unix",
     ],
 )
 
 go_binary(
     name = "installer",
-    embed = [":go_default_library"],
+    embed = [":installer_lib"],
     visibility = ["//visibility:private"],
 )