Bump coveralls from 1.8.2 to 1.9.2

Bumps [coveralls](https://github.com/coveralls-clients/coveralls-python) from 1.8.2 to 1.9.2.
- [Release notes](https://github.com/coveralls-clients/coveralls-python/releases)
- [Changelog](https://github.com/coveralls-clients/coveralls-python/blob/master/CHANGELOG.md)
- [Commits](https://github.com/coveralls-clients/coveralls-python/compare/1.8.2...1.9.2)

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

setup.py

@@ -40,7 +40,7 @@ setup(
     extras_require={
         'dev': [
             'nose==1.3.7',
-            'coveralls==1.8.2',
+            'coveralls==1.9.2',
             'flake8==3.7.9'
         ]
     },