test(generators): raise e2e hook timeout to stop cleanup flake

Each core-package e2e test's `onTestFinished` cleanup `rmSync`-es a temp
clone containing a full installed `node_modules`. That delete can exceed
vitest's 10s default hook timeout under load, failing 2-8 of the 8 e2e
tests per run. Set `hookTimeout: 120_000` to match the per-test timeout.

turbo/generators/vitest.config.ts

@@ -12,5 +12,10 @@ export default defineConfig({
     // trips vitest's worker RPC timeout ("Timeout calling onTaskUpdate").
     // Run test files one at a time so each e2e test gets the box to itself.
     fileParallelism: false,
+    // Each e2e test's `onTestFinished` cleanup `rmSync`-es a temp clone that
+    // contains a full installed `node_modules`. Deleting that many files can
+    // exceed vitest's 10s default hook timeout under load, so raise the
+    // ceiling to match the 120s per-test timeout.
+    hookTimeout: 120_000,
   },
 });