Bump django-csp-reports from 1.7 to 1.8

Bumps [django-csp-reports](https://github.com/adamalton/django-csp-reports) from 1.7 to 1.8.
- [Release notes](https://github.com/adamalton/django-csp-reports/releases)
- [Commits](adamalton/django-csp-reports@1.7...1.8)

---
updated-dependencies:
- dependency-name: django-csp-reports
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/base.txt

@@ -3,7 +3,7 @@ django-bootstrap3==21.2
 dj-database-url==0.5.0
 dj-static==0.0.6
 django-csp==3.7
-django-csp-reports==1.7
+django-csp-reports==1.8
 django-crispy-forms==1.13.0
 django-filter==21.1
 djangorestframework==3.13.1