meta: Bump new development version

Author: getsentry-bot

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = sentry
-version = 23.11.2
+version = 23.12.0.dev0
 description = A realtime logging and aggregation server.
 long_description = file: README.md
 long_description_content_type = text/markdown