ci: make tsgo available for pre-push typechecks

Author: iamdavidhill

bun.lock

@@ -71,6 +71,7 @@
     "@actions/artifact": "5.0.1",
     "@tsconfig/bun": "catalog:",
     "@types/mime-types": "3.0.1",
+    "@typescript/native-preview": "catalog:",
     "glob": "13.0.5",
     "husky": "9.1.7",
     "prettier": "3.6.2",