Bump rspec-rails from 3.7.2 to 3.8.2
Bump rspec-rails from 3.7.2 to 3.8.2

Bumps [rspec-rails](https://github.com/rspec/rspec-rails) from 3.7.2 to 3.8.2.
- [Release notes](https://github.com/rspec/rspec-rails/releases)
- [Changelog](https://github.com/rspec/rspec-rails/blob/master/Changelog.md)
- [Commits](https://github.com/rspec/rspec-rails/compare/v3.7.2...v3.8.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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