Prep for django-csp==4.0b3

Author: Rob Hudson

CHANGES.md

@@ -1,9 +1,16 @@
 CHANGES
 =======
 
-Unreleased
+4.0b3
 ==========
-- Drop support for EOL < Python 3.9 and add Python 3.13
+- Add Python 3.13, drop EOL Python 3.8 ([#245](https://github.com/mozilla/django-csp/pull/245))
+- docs: Fix trusted_types links ([#250](https://github.com/mozilla/django-csp/pull/250))
+- Add `EXCLUDE_URL_PREFIXES` check ([#252](https://github.com/mozilla/django-csp/pull/252))
+- Support CSP configuration as sets ([#251](https://github.com/mozilla/django-csp/pull/251))
+- docs: Note that reporting percentage needs rate limiting middleware ([#256](https://github.com/mozilla/django-csp/pull/256))
+* Document constant NONE vs Python's None ([#255](https://github.com/mozilla/django-csp/pull/255))
+- Raise error when nonce accessed after response ([#258](https://github.com/mozilla/django-csp/pull/258))
+- Test on Django 5.2 ([#261](https://github.com/mozilla/django-csp/pull/261))
 
 4.0b2
 =====

pyproject.toml

@@ -6,7 +6,7 @@ requires = [
 
 [project]
 name = "django-csp"
-version = "4.0b2"
+version = "4.0b3"
 description = "Django Content Security Policy support."
 readme = "README.rst"
 license = { text = "BSD" }