Bump django from 1.11.29 to 3.2.24

Bumps [django](https://github.com/django/django) from 1.11.29 to 3.2.24.
- [Commits](django/django@1.11.29...3.2.24)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -2,7 +2,7 @@
 Trac[pygments, babel]==1.6.0
 dnspython==1.15
 psycopg2==2.9.9 --no-binary=psycopg2
-Django==1.11.29
+Django==3.2.24
 libsass==0.23.0
 
 # Trac plugins