deps: pin TypeScript to v4.2.3

uhyo · uhyo · commit 0e1d8f980e52 · 2021-03-27T23:13:50.000+09:00
diff --git a/TypeScript b/TypeScript
@@ -1 +1 @@
-Subproject commit 2ac888bf5f18107fd4fe231d5fcc5980ee446674
+Subproject commit 34f0e32dc667eb8c7b52b3fc4067316b4ae97774
