Upgrade typescript to 5.3.3 (#324)

This allows using the latest version of vscode-languageclient in #317.

Co-authored-by: John Firebaugh <jfirebaugh@figma.com>

Author: cameron-martin

package-lock.json

@@ -438,7 +438,7 @@
         "eslint-config-prettier": "^9.0.0",
         "eslint-plugin-jsdoc": "^46.9.0",
         "eslint-plugin-prefer-arrow": "^1.2.3",
-        "typescript": "^3.9.4",
+        "typescript": "^5.3.3",
         "vscode-test": "^1.3.0"
     },
     "dependencies": {