get rid of testify/assert lib and use gomega

Signed-off-by: zhaque44 <[email protected]>

Author: zhaque44

go.mod

@@ -33,8 +33,6 @@ require (
 	github.com/onsi/gomega v1.31.1
 	github.com/otiai10/copy v1.14.0
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.8.4
-	github.com/tj/assert v0.0.3
 	k8s.io/api v0.28.6
 	k8s.io/apimachinery v0.28.6
 	k8s.io/client-go v0.28.6
@@ -110,7 +108,6 @@ require (
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/pjbgf/sha1cd v0.3.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.18.0 // indirect
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.45.0 // indirect