fix: add AttachTag to Child

Author: baseballyama

package.json

@@ -105,7 +105,7 @@
     "prettier-plugin-svelte": "^3.3.3",
     "rimraf": "^6.0.1",
     "semver": "^7.7.1",
-    "svelte": "^5.30.1",
+    "svelte": "^5.36.2",
     "svelte2tsx": "^0.7.35",
     "tsx": "^4.19.3",
     "typescript": "~5.8.2",

src/parser/compat.ts

@@ -4,6 +4,7 @@ import type * as SvAST from "./svelte-ast-types.js";
 import type * as Compiler from "./svelte-ast-types-for-v5.js";
 
 export type Child =
+  | Compiler.AttachTag
   | Compiler.Text
   | Compiler.Tag
   | Compiler.ElementLike