fix(create-app): also pin jest in root and cli package.json to ~30.3.0

Keep the monorepo's own jest resolution consistent with the template
range, and update the lockfile to 30.3.0 accordingly.

Co-authored-by: Cursor <cursoragent@cursor.com>

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/cli/package.json

@@ -98,7 +98,7 @@
     "@types/fs-extra": "^11.0.0",
     "@types/jest": "^30.0.0",
     "@types/node": "^22.13.14",
-    "jest": "^30.2.0",
+    "jest": "~30.3.0",
     "jsdom": "^27.1.0",
     "nodemon": "^3.0.1"
   },