Simplify Pimcore licenses (remove *-or-later)

README.md

@@ -694,7 +694,7 @@ _Related: [Blogging Platforms](#blogging-platforms), [Static Site Generators](#s
 - [Omeka](https://omeka.org) - Create complex narratives and share rich collections, adhering to Dublin Core standards with Omeka on your server, designed for scholars, museums, libraries, archives, and enthusiasts. ([Demo](https://omeka.org/classic/showcase/), [Source Code](https://github.com/omeka/Omeka)) `GPL-3.0` `PHP`
 - [Payload CMS](https://payloadcms.com/) - Developer-first headless CMS and application framework. ([Demo](https://demo.payloadcms.com), [Source Code](https://github.com/payloadcms/payload)) `MIT` `Nodejs`
 - [Pico](https://picocms.org/) - Stupidly simple, blazing fast, flat file CMS. ([Source Code](https://github.com/picocms/Pico)) `MIT` `PHP`
-- [Pimcore](https://www.pimcore.org/) - Multi-Channel Experience and Engagement Management Platform. ([Source Code](https://github.com/pimcore/pimcore)) `GPL-3.0-or-later` `PHP`
+- [Pimcore](https://www.pimcore.org/) - Multi-Channel Experience and Engagement Management Platform. ([Source Code](https://github.com/pimcore/pimcore)) `GPL-3.0` `PHP`
 - [Plone](https://plone.org/) - Powerful open-source CMS system. ([Source Code](https://github.com/plone)) `ZPL-2.0` `Python`
 - [PropertyWebBuilder](https://propertywebbuilder.com) - Ultimate Ruby on Rails engine for creating real estate websites. ([Source Code](https://github.com/etewiah/property_web_builder)) `MIT` `Ruby`
 - [Publify](https://publify.github.io/) - Simple but full featured web publishing software. ([Source Code](https://github.com/publify/publify)) `MIT` `Ruby`