DOC-2608: Make changelog RSS url into an Antora attribute

Author: Farzad Hayatbakhsh

antora.yml

@@ -17,6 +17,7 @@ asciidoc:
     openai_proxy_url: https://openai.ai-demo-proxy.tiny.cloud/v1/chat/completions
     openai_proxy_token: eyJhbGciOiJFUzM4NCJ9.eyJhdWQiOlsiaHR0cHM6Ly9vcGVuYWkuYWktZGVtby1wcm94eS50aW55LmNsb3VkLyJdLCJleHAiOjE3NTEzMjgwMDAsImh0dHBzOi8vb3BlbmFpLmFpLWRlbW8tcHJveHkudGlueS5jbG91ZC9yb2xlIjoicHVibGljLWRlbW8iLCJpc3MiOiJodHRwczovL2FpLWRlbW8tcHJveHkudGlueS5jbG91ZC8iLCJqdGkiOiJmOGFmY2EyNC1mN2FhLTQxMjktYTc2Yy02YThlZDU3YjAyZjYiLCJzdWIiOiJhaS1hc3Npc3RhbnQtZGVtbyJ9.Xu0apHCbxgmRQTeTqrTIDFFhh2CgKeARRXa3mCxSGoCwZqkoQaFRZBCzDo8Xz7DuUa5mW2XHl-HYcYiXJM9ly16d0oY7lJefHBeLlmJEBE1CSttHBkCRWZS8eFLCasL6
     default_meta_keywords: tinymce, documentation, docs, plugins, customizable skins, configuration, examples, html, php, java, javascript, image editor, inline editor, distraction-free editor, classic editor, wysiwyg
+    changelog_rss_url: https://www.tiny.cloud/docs/rss.xml
     # product docker variables
     dockerimageimportfromwordexporttoword: registry.containers.tiny.cloud/docx-converter-tiny
     dockerimageexporttopdf: registry.containers.tiny.cloud/pdf-converter-tiny

modules/ROOT/pages/changelog.adoc

@@ -4,7 +4,7 @@
 
 NOTE: This is the {productname} Community version changelog. For information about the latest {cloudname} or {enterpriseversion} Release, see: xref:release-notes.adoc[{productname} Release Notes].
 
-TIP: For an RSS feed of the {productname} Changelog, use the following URL: https://www.tiny.cloud/docs/rss.xml
+TIP: For an RSS feed of the {productname} Changelog, use the following URL: {changelog_rss_url}
 
 == xref:7.6.0-release-notes.adoc[7.6.0 - 2024-12-11]