Bump django-split-settings from 1.2.0 to 1.3.1 (#10022)

Bumps [django-split-settings](https://github.com/sponsors/wemake-services) from 1.2.0 to 1.3.1.
- [Commits](https://github.com/sponsors/wemake-services/commits)

---
updated-dependencies:
- dependency-name: django-split-settings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -57,7 +57,7 @@ cpe==1.2.1
 packageurl-python==0.15.0
 django-crum==0.7.9
 JSON-log-formatter==1.0
-django-split-settings==1.2.0
+django-split-settings==1.3.1
 django-debug-toolbar==4.3.0
 django-debug-toolbar-request-history==0.1.4
 vcrpy==6.0.1