Bump responses from 0.14.0 to 0.15.0 (#67)

Bumps [responses](https://github.com/getsentry/responses) from 0.14.0 to 0.15.0.
- [Release notes](https://github.com/getsentry/responses/releases)
- [Changelog](https://github.com/getsentry/responses/blob/master/CHANGES)
- [Commits](getsentry/responses@0.14.0...0.15.0)

---
updated-dependencies:
- dependency-name: responses
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

setup.py

@@ -46,7 +46,7 @@
             "pylint==2.11.1",
             "pytest==6.2.5",
             "pytest-cov==3.0.0",
-            "responses==0.14.0",
+            "responses==0.15.0",
         ]
     },
     install_requires=[