go.{mod,sum},tstest/tools,k8s-operator,cmd/k8s-operator: autogenerate CRD API docs (#12884)

Re-instates the functionality that generates CRD API docs, but using
a different library as the one we were using earlier seemed to have
some issues with its Git history.
Also regenerates the docs (make kube-generate-all).

Updates tailscale/tailscale#12859

Signed-off-by: Irbe Krumina <irbe@tailscale.com>

go.mod

@@ -25,6 +25,7 @@ require (
 	github.com/distribution/reference v0.6.0
 	github.com/djherbis/times v1.6.0
 	github.com/dsnet/try v0.0.3
+	github.com/elastic/crd-ref-docs v0.0.12
 	github.com/evanw/esbuild v0.19.11
 	github.com/frankban/quicktest v1.14.6
 	github.com/fxamacker/cbor/v2 v2.6.0
@@ -87,28 +88,28 @@ require (
 	github.com/u-root/u-root v0.12.0
 	github.com/vishvananda/netlink v1.2.1-beta.2
 	github.com/vishvananda/netns v0.0.4
-	go.uber.org/zap v1.26.0
+	go.uber.org/zap v1.27.0
 	go4.org/mem v0.0.0-20220726221520-4f986261bf13
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.24.0
+	golang.org/x/crypto v0.25.0
 	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a
-	golang.org/x/mod v0.18.0
-	golang.org/x/net v0.26.0
+	golang.org/x/mod v0.19.0
+	golang.org/x/net v0.27.0
 	golang.org/x/oauth2 v0.16.0
 	golang.org/x/sync v0.7.0
-	golang.org/x/sys v0.21.0
-	golang.org/x/term v0.21.0
+	golang.org/x/sys v0.22.0
+	golang.org/x/term v0.22.0
 	golang.org/x/time v0.5.0
-	golang.org/x/tools v0.22.0
+	golang.org/x/tools v0.23.0
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2
 	golang.zx2c4.com/wireguard/windows v0.5.3
 	gopkg.in/square/go-jose.v2 v2.6.0
 	gvisor.dev/gvisor v0.0.0-20240306221502-ee1e1f6070e3
 	honnef.co/go/tools v0.4.6
-	k8s.io/api v0.30.1
-	k8s.io/apimachinery v0.30.1
-	k8s.io/apiserver v0.30.1
-	k8s.io/client-go v0.30.1
+	k8s.io/api v0.30.3
+	k8s.io/apimachinery v0.30.3
+	k8s.io/apiserver v0.30.3
+	k8s.io/client-go v0.30.3
 	nhooyr.io/websocket v1.8.10
 	sigs.k8s.io/controller-runtime v0.18.4
 	sigs.k8s.io/controller-tools v0.15.1-0.20240618033008-7824932b0cab
@@ -117,6 +118,7 @@ require (
 )
 
 require (
+	github.com/Masterminds/sprig v2.22.0+incompatible // indirect
 	github.com/Microsoft/go-winio v0.6.1 // indirect
 	github.com/bits-and-blooms/bitset v1.13.0 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
@@ -127,6 +129,7 @@ require (
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/gobuffalo/flect v1.0.2 // indirect
+	github.com/goccy/go-yaml v1.12.0 // indirect
 	github.com/google/gnostic-models v0.6.9-0.20230804172637-c7be7c783f49 // indirect
 	github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd // indirect
 	github.com/gorilla/securecookie v1.1.2 // indirect
@@ -134,6 +137,7 @@ require (
 	go.opentelemetry.io/otel v1.22.0 // indirect
 	go.opentelemetry.io/otel/metric v1.22.0 // indirect
 	go.opentelemetry.io/otel/trace v1.22.0 // indirect
+	golang.org/x/xerrors v0.0.0-20240716161551-93cc26a95ae9 // indirect
 )
 
 require (
@@ -201,7 +205,7 @@ require (
 	github.com/ettle/strcase v0.1.1 // indirect
 	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.9.0 // indirect
-	github.com/fatih/color v1.16.0 // indirect
+	github.com/fatih/color v1.17.0 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
 	github.com/firefart/nonamedreturns v1.0.4 // indirect
 	github.com/fsnotify/fsnotify v1.7.0
@@ -210,7 +214,7 @@ require (
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.5.0 // indirect
 	github.com/go-git/go-git/v5 v5.11.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-openapi/jsonpointer v0.20.2 // indirect
 	github.com/go-openapi/jsonreference v0.20.4 // indirect
 	github.com/go-openapi/swag v0.22.7 // indirect
@@ -252,7 +256,7 @@ require (
 	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/hexops/gotextdiff v1.0.3 // indirect
-	github.com/huandu/xstrings v1.4.0 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
 	github.com/imdario/mergo v0.3.16 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
@@ -337,14 +341,14 @@ require (
 	github.com/sourcegraph/go-diff v0.7.0 // indirect
 	github.com/spf13/afero v1.9.5 // indirect
 	github.com/spf13/cast v1.6.0 // indirect
-	github.com/spf13/cobra v1.8.0 // indirect
+	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.16.0 // indirect
 	github.com/ssgreg/nlreturn/v2 v2.2.1 // indirect
 	github.com/stbenjam/no-sprintf-host-port v0.1.1 // indirect
-	github.com/stretchr/objx v0.5.0 // indirect
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/stretchr/testify v1.9.0
 	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/t-yuki/gocover-cobertura v0.0.0-20180217150009-aaee18c8195c // indirect
 	github.com/tailscale/go-winio v0.0.0-20231025203758-c4f33415bf55
@@ -379,10 +383,10 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1
 	howett.net/plist v1.0.0 // indirect
-	k8s.io/apiextensions-apiserver v0.30.1 // indirect
-	k8s.io/klog/v2 v2.120.1 // indirect
+	k8s.io/apiextensions-apiserver v0.30.3 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
-	k8s.io/utils v0.0.0-20240102154912-e7106e64919e
+	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8
 	mvdan.cc/gofumpt v0.5.0 // indirect
 	mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed // indirect
 	mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b // indirect