Bump responses from 0.25.3 to 0.25.6 (#94)

Bumps [responses](https://github.com/getsentry/responses) from 0.25.3 to 0.25.6.
- [Release notes](https://github.com/getsentry/responses/releases)
- [Changelog](https://github.com/getsentry/responses/blob/master/CHANGES)
- [Commits](getsentry/responses@0.25.3...0.25.6)

---
updated-dependencies:
- dependency-name: responses
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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