Bump responses from 0.9.0 to 0.10.5

Bumps [responses](https://github.com/getsentry/responses) from 0.9.0 to 0.10.5.
- [Release notes](https://github.com/getsentry/responses/releases)
- [Changelog](https://github.com/getsentry/responses/blob/master/CHANGES)
- [Commits](getsentry/responses@0.9.0...0.10.5)

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

Author: dependabot-support

travis/requirements.txt

@@ -1,5 +1,5 @@
 pytest==4.0.2
-responses==0.9.0
+responses==0.10.5
 pytest-cov==2.5.1
 pytest-pep8==1.0.6
 pytest-leaks==0.2.2