Bump typescript to ~4.9.5 (#720)

Author: trivikr

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json

@@ -17,15 +17,15 @@
   "module": "./dist-es/index.js",
   "sideEffects": false,
   "dependencies": {
-    "tslib": "^2.3.1"
+    "tslib": "^2.5.0"
   },
   "devDependencies": {
     "@tsconfig/node14": "1.0.3",
     "concurrently": "7.0.0",
     "downlevel-dts": "0.10.1",
     "rimraf": "^3.0.0",
     "typedoc": "0.23.23",
-    "typescript": "~4.6.2"
+    "typescript": "~4.9.5"
   },
   "engines": {
     "node": ">=14.0.0"