Use any instead of interface{} (#20577)

* replace interface{} with any

app/slashcommands/command_code_test.go

@@ -12,7 +12,7 @@ import (
 func TestCodeProviderDoCommand(t *testing.T) {
 	cp := CodeProvider{}
 	args := &model.CommandArgs{
-		T: func(s string, args ...interface{}) string { return s },
+		T: func(s string, args ...any) string { return s },
 	}
 
 	for msg, expected := range map[string]string{