Release version 13.0.

Author: aaugustin

docs/project/changelog.rst

@@ -30,7 +30,7 @@ notice.
 13.0
 ----
 
-*In development*
+*August 20, 2024*
 
 Backwards-incompatible changes
 ..............................

src/websockets/version.py

@@ -18,9 +18,9 @@
 # When tagging a release, set `released = True`.
 # After tagging a release, set `released = False` and increment `tag`.
 
-released = False
+released = True
 
-tag = version = commit = "12.1"
+tag = version = commit = "13.0"
 
 
 if not released:  # pragma: no cover