chore(deps): bump github.com/stretchr/testify from 1.8.4 to 1.9.0

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.8.4 to 1.9.0.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](stretchr/testify@v1.8.4...v1.9.0)

---
updated-dependencies:
- dependency-name: github.com/stretchr/testify
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -12,9 +12,8 @@ require (
 	github.com/prometheus/client_model v0.5.0
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spf13/afero v1.9.5
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.9.0
 	golang.org/x/mod v0.14.0
-	golang.org/x/tools v0.16.1
 	gomodules.xyz/jsonpatch/v2 v2.4.0
 	k8s.io/api v0.29.0
 	k8s.io/apimachinery v0.29.0
@@ -45,7 +44,6 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/gnostic v0.5.7-v3refs // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
@@ -55,7 +53,6 @@ require (
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/kennygrant/sanitize v1.2.4 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
 	github.com/moby/spdystream v0.2.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
@@ -66,7 +63,6 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/common v0.45.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/temoto/robotstxt v1.1.2 // indirect