Update ./docs/versions/next.json for v8.0.0-alpha.3

docs/versions/next.json

@@ -1 +1 @@
-{"version":"8.0.0-alpha.2","info":{"plain":"- Core: Maintenance changes for NextJS embedding - [#25086](https://github.com/storybookjs/storybook/pull/25086), thanks [@shilman](https://github.com/shilman)!\n- Docs: Use encodeURIComponent to encode story name - [#25062](https://github.com/storybookjs/storybook/pull/25062), thanks [@xyy94813](https://github.com/xyy94813)!\n- Init: Allow users to generate a new project in empty directory - [#24997](https://github.com/storybookjs/storybook/pull/24997), thanks [@Integrayshaun](https://github.com/Integrayshaun)!\n- Svelte: Support v5 prereleases - [#24889](https://github.com/storybookjs/storybook/pull/24889), thanks [@allozaur](https://github.com/allozaur)!\n- Vue: Remove deprecated vue packages from next - [#25108](https://github.com/storybookjs/storybook/pull/25108), thanks [@kasperpeulen](https://github.com/kasperpeulen)!\n- Vue: Remove unused preset-vue-webpack - [#25151](https://github.com/storybookjs/storybook/pull/25151), thanks [@shilman](https://github.com/shilman)!"}}
+{"version":"8.0.0-alpha.3","info":{"plain":"- Addon-docs: Fix storybook MDX check - [#24696](https://github.com/storybookjs/storybook/pull/24696), thanks [@shilman](https://github.com/shilman)!\n- Addons: Remove unused postinstall package - [#25150](https://github.com/storybookjs/storybook/pull/25150), thanks [@shilman](https://github.com/shilman)!\n- Angular: Update Angular cli templates - [#25152](https://github.com/storybookjs/storybook/pull/25152), thanks [@Marklb](https://github.com/Marklb)!\n- Blocks: Fix Subtitle block for unattached docs pages - [#25157](https://github.com/storybookjs/storybook/pull/25157), thanks [@kripod](https://github.com/kripod)!\n- Ember: Fix @storybook/ember - [#23435](https://github.com/storybookjs/storybook/pull/23435), thanks [@francois2metz](https://github.com/francois2metz)!\n- Maintenance: Set engines field to Node.js >= 18 for packages - [#25105](https://github.com/storybookjs/storybook/pull/25105), thanks [@valentinpalkovic](https://github.com/valentinpalkovic)!"}}