Update upcoming_hackathons.yml

Author: DCGenomics

_data/upcoming_hackathons.yml

@@ -13,7 +13,12 @@
   link: https://ncbiinsights.ncbi.nlm.nih.gov/event/2025cgcodeathon/
   community:
 
+- date: "October 1-3, 2025"
+  loc: "Open Data Hackathon"
+  link: https://aws.amazon.com/opendata/
+  community:
+
 - date: "October 21-22, 2025"
   loc: "Open Targets Hackathon"
   link: https://www.opentargets.org/hackathon
-  community:
+  community: