fix(deps): update module github.com/stretchr/testify to v1.8.4

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/Nerzal/gocloak/v11 v11.2.0
 	github.com/appuio/control-api v0.20.0
 	github.com/golang/mock v1.6.0
-	github.com/stretchr/testify v1.8.2
+	github.com/stretchr/testify v1.8.4
 	k8s.io/apimachinery v0.26.3
 	k8s.io/client-go v0.26.3
 	sigs.k8s.io/controller-runtime v0.14.5
@@ -16,7 +16,6 @@ require (
 )
 
 require (
-	cloud.google.com/go/compute/metadata v0.2.3 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.10.2 // indirect
 	github.com/google/gnostic v0.6.9 // indirect
@@ -25,26 +24,14 @@ require (
 )
 
 require (
-	cloud.google.com/go v0.97.0 // indirect
-	github.com/Azure/go-autorest v14.2.0+incompatible // indirect
-	github.com/Azure/go-autorest/autorest v0.11.28 // indirect
-	github.com/Azure/go-autorest/autorest/adal v0.9.23 // indirect
-	github.com/Azure/go-autorest/autorest/date v0.3.0 // indirect
-	github.com/Azure/go-autorest/logger v0.2.1 // indirect
-	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
 	github.com/BurntSushi/toml v1.2.1 // indirect
-	github.com/PuerkitoBio/purell v1.2.0 // indirect
-	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/alessio/shellescape v1.4.1 // indirect
-	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/blang/semver v3.5.1+incompatible // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fatih/color v1.15.0 // indirect
-	github.com/form3tech-oss/jwt-go v3.2.5+incompatible // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-errors/errors v1.4.2 // indirect
 	github.com/go-logr/logr v1.2.3
@@ -62,21 +49,17 @@ require (
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
 	github.com/google/uuid v1.3.0 // indirect
-	github.com/googleapis/gnostic v0.5.5 // indirect
 	github.com/imdario/mergo v0.3.15 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.18 // indirect
-	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
-	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 // indirect
-	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -103,7 +86,6 @@ require (
 	golang.org/x/text v0.8.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	golang.org/x/tools v0.7.0 // indirect
-	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect