Update openfisca-core requirement from <42,>=40.0.1 to >=40.0.1,<43

Updates the requirements on [openfisca-core](https://github.com/openfisca/openfisca-core) to permit the latest version.
- [Changelog](https://github.com/openfisca/openfisca-core/blob/master/CHANGELOG.md)
- [Commits](openfisca/openfisca-core@40.0.1...42.0.7)

---
updated-dependencies:
- dependency-name: openfisca-core
  dependency-type: direct:production
...

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

setup.py

@@ -61,7 +61,7 @@
         },
     include_package_data = True,  # Will read MANIFEST.in
     install_requires = [
-        'OpenFisca-Core >=40.0.1, <42',
+        'OpenFisca-Core >=40.0.1, <43',
         'scipy >= 0.12',
         ],
     # message_extractors = {'openfisca_tunisia': [