Add changelog for #13783 (#13811)

Sosuke Suzuki · web-flow · commit 520dbcd36eff · 2022-11-06T17:54:43.000+09:00
* Add changelog

* Fix
diff --git a/changelog_unreleased/typescript/13764.md b/changelog_unreleased/typescript/13764.md
@@ -0,0 +1,16 @@
+#### Support TypeScript 4.9 (#13764, #13783 by @sosukesuzuki)
+
+Support [TypeScript 4.9](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9) features!
+
+##### [`satisfies` operator](https://devblogs.microsoft.com/typescript/announcing-typescript-4-9-beta/#the-satisfies-operator)
+
+Supported by only `babel-ts` parser.
+
+<!-- prettier-ignore -->
+```tsx
+const palette = {
+  red: [255, 0, 0],
+  green: "#00ff00",
+  blue: [0, 0, 255]
+} satisfies Record<Colors, string | RGB>;
+```
