auto: add jellyfin-plugin-auto-collections to "plugins" (#320)

Co-authored-by: awesome-jellyfin[bot] <204013580+awesome-jellyfin[bot]@users.noreply.github.com>
Co-authored-by: Druidblack <70659424+Druidblack@users.noreply.github.com>

README.md

@@ -37,6 +37,7 @@
 - [Jellyfin-Newsletter-Plugin](https://github.com/Cloud9Developer/Jellyfin-Newsletter-Plugin) - Newsletters for recently added media. `🔹 Beta` `🔸 Stale`
 - [jellyfin-plugin-air-times](https://github.com/apteryxxyz/jellyfin-plugin-air-times) - Provides localized series air times based on server location.
 - [jellyfin-plugin-animethemes](https://github.com/EusthEnoptEron/jellyfin-plugin-animethemes) - Fetches anime opening and ending themes from [AnimeThemes.moe](https://animethemes.moe/), supporting both audio and video.
+- [jellyfin-plugin-auto-collections](https://github.com/KeksBombe/jellyfin-plugin-auto-collections) - Automatically creates and maintains dynamic collections based on flexible criteria.
 - [jellyfin-plugin-cinemamode](https://github.com/CherryFloors/jellyfin-plugin-cinemamode) - A plugin that allows users to enable Jellyfin's Cinema Mode functionality with local trailers and pre-rolls.
 - [jellyfin-plugin-collection-import](https://github.com/lostb1t/jellyfin-plugin-collection-import) - Create and sort collections by importing from external sources like *mdblist*.
 - [jellyfin-plugin-collection-sections](https://github.com/IAmParadox27/jellyfin-plugin-collection-sections) - Adds additional sections to `jellyfin-plugin-home-sections` for collections and playlists.
@@ -189,3 +190,4 @@ This section includes software, guides and tools that are not *specifically* des
 
 Contributions welcome! But please read the [contribution guidelines](CONTRIBUTING.md) first.
 You can also [create a new issue](https://github.com/awesome-jellyfin/awesome-jellyfin/issues/new).
+