Bump configobj from 5.0.8 to 5.0.9 in /requirements

Bumps [configobj](https://github.com/DiffSK/configobj) from 5.0.8 to 5.0.9.
- [Release notes](https://github.com/DiffSK/configobj/releases)
- [Changelog](https://github.com/DiffSK/configobj/blob/release/CHANGES.rst)
- [Commits](DiffSK/configobj@v5.0.8...v5.0.9)

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

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

requirements/base.txt

@@ -5,7 +5,7 @@ django-js-reverse==0.10.2
 djangorestframework==3.14.0
 django==3.2.25
 colorlog==6.8.2
-configobj==5.0.8
+configobj==5.0.9
 django-mptt==0.14.0
 requests==2.27.1
 cheroot==10.0.1