Update Go dependencies (#36781)

Update all non-locked Go dependencies and pin incompatible ones.

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/migration/file_format.go

@@ -12,10 +12,17 @@ import (
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
 
-	"github.com/santhosh-tekuri/jsonschema/v5"
+	"github.com/santhosh-tekuri/jsonschema/v6"
 	"gopkg.in/yaml.v3"
 )
 
+// schemaLoader implements jsonschema.URLLoader
+type schemaLoader struct{}
+
+func (l *schemaLoader) Load(url string) (any, error) {
+	return openSchema(url)
+}
+
 // Load project data from file, with optional validation
 func Load(filename string, data any, validation bool) error {
 	isJSON := strings.HasSuffix(filename, ".json")
@@ -43,7 +50,7 @@ func unmarshal(bs []byte, data any, isJSON bool) error {
 
 func getSchema(filename string) (*jsonschema.Schema, error) {
 	c := jsonschema.NewCompiler()
-	c.LoadURL = openSchema
+	c.UseLoader(&schemaLoader{})
 	return c.Compile(filename)
 }