remove noisy logs from event hooks and add tests (#193)

go.mod

@@ -3,6 +3,7 @@ module go.unistack.org/micro-broker-kgo/v4
 go 1.23.8
 
 require (
+	github.com/stretchr/testify v1.10.0
 	github.com/twmb/franz-go v1.19.5
 	github.com/twmb/franz-go/pkg/kadm v1.16.0
 	github.com/twmb/franz-go/pkg/kfake v0.0.0-20250508175730-72e1646135e3
@@ -12,12 +13,15 @@ require (
 )
 
 require (
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/matoous/go-nanoid v1.5.1 // indirect
 	github.com/pierrec/lz4/v4 v4.1.22 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/spf13/cast v1.9.2 // indirect
 	go.unistack.org/micro-proto/v4 v4.1.0 // indirect
 	golang.org/x/crypto v0.39.0 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )