Bump django from 2.2.25 to 2.2.27 (#183)

Bumps [django](https://github.com/django/django) from 2.2.25 to 2.2.27.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@2.2.25...2.2.27)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -16,7 +16,7 @@ contextlib2==0.5.3
 decorator==4.0.10
 defusedxml==0.7.1
 distlib==0.3.4
-Django==2.2.25
+Django==2.2.27
 django-celery-results==2.0.1
 django-cors-headers==3.2.1
 django-nose==1.4.5