[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/adamchainz/django-upgrade: 1.27.0 → 1.28.0](adamchainz/django-upgrade@1.27.0...1.28.0)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -23,7 +23,7 @@ repos:
     -   id: pyupgrade
         args: [--py39-plus]
   - repo: https://github.com/adamchainz/django-upgrade
-    rev: 1.27.0
+    rev: 1.28.0
     hooks:
     - id: django-upgrade
       args: [--target-version, "4.2"]