C#: Add change note.

michaelnebel · michaelnebel · commit e8f86e41f4fe · 2025-02-24T13:58:55.000+01:00
diff --git a/csharp/ql/src/change-notes/2025-02-24-object-tostring.md b/csharp/ql/src/change-notes/2025-02-24-object-tostring.md
@@ -0,0 +1,4 @@
+---
+category: minorAnalysis
+---
+* C#: Improve precision of the query `cs/call-to-object-tostring` for value tuples.
