Bump the storybook group

Bumps the storybook group in /generators/react-native/templates with 2 updates: [@storybook/react-native](https://github.com/storybookjs/react-native/tree/HEAD/packages/react-native) and [@storybook/theming](https://github.com/storybookjs/storybook/tree/HEAD/code/lib/theming).


Updates `@storybook/react-native` from 7.6.19 to 8.4.2
- [Release notes](https://github.com/storybookjs/react-native/releases)
- [Changelog](https://github.com/storybookjs/react-native/blob/next/CHANGELOG.md)
- [Commits](https://github.com/storybookjs/react-native/commits/v8.4.2/packages/react-native)

Updates `@storybook/theming` from 8.1.6 to 8.4.5
- [Release notes](https://github.com/storybookjs/storybook/releases)
- [Commits](https://github.com/storybookjs/storybook/commits/v8.4.5/code/lib/theming)

---
updated-dependencies:
- dependency-name: "@storybook/react-native"
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: storybook
- dependency-name: "@storybook/theming"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: storybook
...

Signed-off-by: dependabot[bot] <[email protected]>

generators/react-native/templates/package.json

@@ -36,8 +36,8 @@
     "@eslint/js": "9.15.0",
     "@redux-devtools/extension": "3.3.0",
     "@storybook/addons": "7.6.17",
-    "@storybook/react-native": "7.6.19",
-    "@storybook/theming": "8.1.6",
+    "@storybook/react-native": "8.4.2",
+    "@storybook/theming": "8.4.5",
     "@testing-library/jest-native": "5.4.3",
     "@testing-library/react-native": "12.8.1",
     "@types/jest": "29.5.14",