build(deps): bump drf-writable-nested from 0.7.0 to 0.7.2

Bumps [drf-writable-nested](https://github.com/beda-software/drf-writable-nested) from 0.7.0 to 0.7.2.
- [Release notes](https://github.com/beda-software/drf-writable-nested/releases)
- [Changelog](https://github.com/beda-software/drf-writable-nested/blob/master/CHANGELOG.md)
- [Commits](beda-software/drf-writable-nested@v0.7.0...v0.7.2)

---
updated-dependencies:
- dependency-name: drf-writable-nested
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -78,7 +78,7 @@ djangorestframework==3.14.0
 djangorestframework-gis==1.0
 djangorestframework-guardian==0.3.0
 drf-extensions==0.7.1
-drf-writable-nested==0.7.0
+drf-writable-nested==0.7.2
 drf-spectacular==0.27.2
 dynamic-rest==2.3.0
 Markdown==3.6