Update NODES promo for NODES AI (#1425)

Author: recrwplay

publish.yml

@@ -53,13 +53,11 @@ asciidoc:
     cross-mark: icon:times[]
     neo4j-base-uri: ''
     neo4j-docs-base-uri: /docs
-    # NODES 2025
-    page-ad-overline-link: https://www.neo4j.com/nodes-2025?utm_source=docs&utm_medium=banner
-    page-ad-overline: ''
-    page-ad-image: "{neo4j-docs-base-uri}/assets/img/nodes-25.png"
-    page-ad-icon: ''
-    page-ad-title: Neo4j Online Developer Conference
-    page-ad-description: Join us on November 6 for 24hrs of live and unique tech talks on graphs and AI
-    page-ad-link: https://www.neo4j.com/nodes-2025?utm_source=docs&utm_medium=banner
+    # NODES AI 2026
+    page-ad-overline-link: https://sessionize.com/nodesai2026/
+    page-ad-image: "{neo4j-docs-base-uri}/assets/img/Nodes-AI-Color.png"
+    page-ad-title: One Day of AI and Graphs on April 15, 2026
+    page-ad-description: The Call for Papers is now open. Submit your talk by December 12, 2025
+    page-ad-link: https://sessionize.com/nodesai2026/
     page-ad-underline-role: button
-    page-ad-underline: Register
+    page-ad-underline: Submit your talk