Add: Agile Teting Days 2025 (#738)

Co-authored-by: Christian Baumann <christian.baumann@maibornwolff.de>

Author: christianbaumann

_data/current.yml

@@ -121,3 +121,10 @@
   url: https://automation.eurostarsoftwaretesting.com/?utm_source=testingconferences
   twitter: esconfs
   status: CFP is Opening Soon
+
+- name: Agile Testing Days
+  location: Potsdam, Germany
+  dates: "November 24-27, 2025"
+  url: https://agiletestingdays.com/
+  twitter: AgileTD
+  status: CFP is Opening in February