Update current.yml (#904)

Testing Assebly: Status added

Author: rytmar

_data/current.yml

@@ -226,6 +226,7 @@
   location: Helsinki, Finland
   dates: "November 4, 2026"
   url: https://testingassembly.fistb.fi/?utm_source=testingconferences
+  status: <a href="https://testingassembly.fistb.fi/register/?utm_source=testingconferences" target="_blank">Registration is Open</a>
 
 - name: TestWarez 2026
   location: Sopot, Poland