feat: Update the lib version

Signed-off-by: Pascal Zimmermann <pascal.zimmermann@theiotstudio.com>

modules/optional/serialization.go

@@ -6,7 +6,7 @@ package optional
 import (
 	"code.gitea.io/gitea/modules/json"
 
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 )
 
 func (o *Option[T]) UnmarshalJSON(data []byte) error {

modules/optional/serialization_test.go

@@ -11,7 +11,7 @@ import (
 	"code.gitea.io/gitea/modules/optional"
 
 	"github.com/stretchr/testify/assert"
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 )
 
 type testSerializationStruct struct {