Bump mockito from 1.3.5 to 1.4.0

Bumps [mockito](https://github.com/kaste/mockito-python) from 1.3.5 to 1.4.0.
- [Release notes](https://github.com/kaste/mockito-python/releases)
- [Changelog](https://github.com/kaste/mockito-python/blob/master/CHANGES.txt)
- [Commits](kaste/mockito-python@1.3.5...1.4.0)

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

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

test-requirements.txt

@@ -4,4 +4,4 @@ nose>=1.3.7
 pluggy>=0.3.1
 py>=1.4.31
 randomize>=0.13
-mockito==1.3.5
+mockito==1.4.0