deps: bump sigs.k8s.io/controller-tools in /build/tools

Bumps [sigs.k8s.io/controller-tools](https://github.com/kubernetes-sigs/controller-tools) from 0.16.3 to 0.16.4.
- [Release notes](https://github.com/kubernetes-sigs/controller-tools/releases)
- [Changelog](https://github.com/kubernetes-sigs/controller-tools/blob/main/envtest-releases.yaml)
- [Commits](kubernetes-sigs/controller-tools@v0.16.3...v0.16.4)

---
updated-dependencies:
- dependency-name: sigs.k8s.io/controller-tools
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build/tools/go.mod

@@ -13,7 +13,7 @@ require (
 	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1
 	google.golang.org/protobuf v1.35.1
 	mvdan.cc/gofumpt v0.7.0
-	sigs.k8s.io/controller-tools v0.16.3
+	sigs.k8s.io/controller-tools v0.16.4
 )
 
 require (
@@ -120,7 +120,6 @@ require (
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
-	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
 	github.com/mgechev/revive v1.4.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
@@ -172,7 +171,6 @@ require (
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/stretchr/testify v1.9.0 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
-	github.com/t-yuki/gocover-cobertura v0.0.0-20180217150009-aaee18c8195c // indirect
 	github.com/tdakkota/asciicheck v0.2.0 // indirect
 	github.com/tetafro/godot v1.4.18 // indirect
 	github.com/timakin/bodyclose v0.0.0-20240125160201-f835fa56326a // indirect