chore(deps-dev): bump prospector from 1.10.2 to 1.10.3 in /requirements

Bumps [prospector](https://github.com/PyCQA/prospector) from 1.10.2 to 1.10.3.
- [Release notes](https://github.com/PyCQA/prospector/releases)
- [Changelog](https://github.com/landscapeio/prospector/blob/master/CHANGELOG.rst)
- [Commits](prospector-dev/prospector@1.10.2...v1.10.3)

---
updated-dependencies:
- dependency-name: prospector
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

requirements/dev.txt

@@ -1,7 +1,7 @@
 -r base.txt
 
 pytest-django==4.5.2
-prospector==1.10.2
+prospector==1.10.3
 factory_boy==3.3.0
 Faker==19.10.0
 django-debug-toolbar==4.2.0