Bump model-bakery from 1.3.3 to 1.6.0

Bumps [model-bakery](https://github.com/model-bakers/model_bakery) from 1.3.3 to 1.6.0.
- [Release notes](https://github.com/model-bakers/model_bakery/releases)
- [Changelog](https://github.com/model-bakers/model_bakery/blob/main/CHANGELOG.md)
- [Commits](model-bakers/model_bakery@1.3.3...1.6.0)

---
updated-dependencies:
- dependency-name: model-bakery
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements_test.txt

@@ -1,5 +1,5 @@
 codecov>=2.0.0
 coverage==5.5
 flake8>=2.1.0
-model-bakery==1.3.3
+model-bakery==1.6.0
 tox>=1.7.0