chore: remove last etcd 2.3.8 dependency

.github/dependabot.yml

@@ -26,7 +26,3 @@ updates:
   open-pull-requests-limit: 10
   reviewers:
   - nberlee
-  ignore:
-  - dependency-name: go.etcd.io/etcd
-    versions:
-    - "> v3.4.18+incompatible"

go.mod

@@ -13,8 +13,8 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.12.1
 	github.com/sirupsen/logrus v1.8.1
-	go.etcd.io/etcd v2.3.8+incompatible
 	go.etcd.io/etcd/api/v3 v3.5.2
+	go.etcd.io/etcd/client/pkg/v3 v3.5.2
 	go.etcd.io/etcd/client/v3 v3.5.2
 	golang.org/x/oauth2 v0.0.0-20220309155454-6242fa91716a
 	golang.org/x/time v0.0.0-20220224211638-0e9765cccd65
@@ -75,7 +75,6 @@ require (
 	github.com/prometheus/procfs v0.7.3 // indirect
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.2 // indirect
 	go.opencensus.io v0.23.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect

go.sum

@@ -544,8 +544,6 @@ github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
-go.etcd.io/etcd v2.3.8+incompatible h1:m5lZwb9yKkh27IFgPQWTdiaG/9waG7AWy0NSHedy3Mk=
-go.etcd.io/etcd v2.3.8+incompatible/go.mod h1:yaeTdrJi5lOmYerz05bd8+V7KubZs8YSFZfzsF9A6aI=
 go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/api/v3 v3.5.1/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/api/v3 v3.5.2 h1:tXok5yLlKyuQ/SXSjtqHc4uzNaMqZi2XsoSPr/LlJXI=

pkg/util/etcdutil/tls.go

@@ -19,7 +19,7 @@ import (
 	"io/ioutil"
 	"path/filepath"
 
-	"go.etcd.io/etcd/pkg/transport"
+	"go.etcd.io/etcd/client/pkg/v3/transport"
 )
 
 const (