chore(deps): bump go.etcd.io/etcd/client/v3 from 3.6.5 to 3.6.6 (#7496)

Bumps [go.etcd.io/etcd/client/v3](https://github.com/etcd-io/etcd) from 3.6.5 to 3.6.6.
- [Release notes](https://github.com/etcd-io/etcd/releases)
- [Commits](https://github.com/etcd-io/etcd/compare/v3.6.5...v3.6.6)

---
updated-dependencies:
- dependency-name: go.etcd.io/etcd/client/v3
  dependency-version: 3.6.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -90,7 +90,7 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	go.etcd.io/etcd/client/v3 v3.6.5
+	go.etcd.io/etcd/client/v3 v3.6.6
 	go.mongodb.org/mongo-driver v1.17.6
 	go.opencensus.io v0.24.0 // indirect
 	gocloud.dev v0.43.0
@@ -159,7 +159,7 @@ require (
 	github.com/xeipuuv/gojsonschema v1.2.0
 	github.com/ydb-platform/ydb-go-sdk-auth-environ v0.5.0
 	github.com/ydb-platform/ydb-go-sdk/v3 v3.113.5
-	go.etcd.io/etcd/client/pkg/v3 v3.6.5
+	go.etcd.io/etcd/client/pkg/v3 v3.6.6
 	go.uber.org/atomic v1.11.0
 	golang.org/x/sync v0.17.0
 	golang.org/x/tools/godoc v0.1.0-deprecated
@@ -432,7 +432,7 @@ require (
 	github.com/zeebo/blake3 v0.2.4 // indirect
 	github.com/zeebo/errs v1.4.0 // indirect
 	go.etcd.io/bbolt v1.4.2 // indirect
-	go.etcd.io/etcd/api/v3 v3.6.5 // indirect
+	go.etcd.io/etcd/api/v3 v3.6.6 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/detectors/gcp v1.37.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.62.0 // indirect