MAINT: making summit old news (#778)

* MAINT: making summit old news

* Update content/news.md

Co-authored-by: Brigitta Sipőcz <[email protected]>

---------

Co-authored-by: Jarrod Millman <[email protected]>

Author: bsipocz

content/news.md

@@ -1,7 +1,7 @@
 ---
 title: News
-newsHeader: Third Developer Summit will be held in Seattle – 11-14 May 2025
-date: 2025-03-28
+newsHeader: Third Developer Summit was held in Seattle – 11-14 May 2025
+date: 2025-05-15
 sidebar: false
 ---