fix(docs): add missing hyphen in date format in NEWS (#1979)

NEWS

@@ -2,7 +2,7 @@
 
  * Drop support for Python 3.9. (Jelmer Vernooij)
 
-0.24.8	2025-1029
+0.24.8	2025-10-29
 
  * Add Rust implementation of pack delta creation (create_delta). The
    implementation uses the similar crate for efficient diff computation.