fix(create-app): pin jest to ~30.3.0 to avoid Node 24.9+ requirement

Jest 30.4.0 introduced synchronous require(ESM) support that requires
Node v24.9+. With ^30.2.0 in the templates, a fresh yarn install in
e2e test apps resolves to 30.4.x and breaks on Node 22.

Pin to ~30.3.0 (30.3.x patches only), which includes the 30.3.0 fix
that explicitly disables the require_module feature flag, while staying
below the 30.4.0 runtime requirement.

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

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

packages/create-app/templates/default-app/package.json.hbs

@@ -42,7 +42,7 @@
     "@jest/environment-jsdom-abstract": "^30.0.0",
     "@playwright/test": "^1.32.3",
     "@types/jest": "^30.0.0",
-    "jest": "^30.2.0",
+    "jest": "~30.3.0",
     "jsdom": "^27.1.0",
     "node-gyp": "^10.0.0",
     "prettier": "^2.3.2",

packages/create-app/templates/legacy-app/package.json.hbs

@@ -55,7 +55,7 @@
     "@jest/environment-jsdom-abstract": "^30.0.0",
     "@playwright/test": "^1.32.3",
     "@types/jest": "^30.0.0",
-    "jest": "^30.2.0",
+    "jest": "~30.3.0",
     "jsdom": "^27.1.0",
     "node-gyp": "^10.0.0",
     "prettier": "^2.3.2",