Breaking: #85323 - Move GET parameters in sitemap into namespace

Description

The names of the GET parameters used in the sitemap generated by EXT:seo have been changed from page and sitemap to tx_seo[page] and tx_seo[sitemap] respectively.

Impact

Applications, routing configuration and 3rd party tools that rely on the parameters being named page and sitemap break.

Affected installations

This affects installations, which use the arguments page and sitemap or override the sitemap templates of EXT:seo.

Migration

In case the arguments are mapped in the routing configuration, the code needs to be slightly adopted. A working example issue

routeEnhancers:
  Sitemap:
    type: Simple
    routePath: 'sitemap-type/{sitemap}'
    aspects:
      sitemap:
        type: StaticValueMapper
        map:
          pages: pages
          tx_news: tx_news
          my_other_sitemap: my_other_sitemap
    _arguments:
      sitemap: 'tx_seo/sitemap'

If the templates of EXT:seo/Resources/Private/Templates/XmlSitemap/Index.xml have been modified, adopt the generated links to fit the original ones.

In case the URL to a single sitemap has been provided to a 3rd party tool like a crawler, search engine, ... it must be added again with the new URL.