Remove version pin for rainbow
dev dependency
#553
Merged
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The
rainbow
gem is a dependency of rubocop, which we use as a development dependency on this project. Previously, we were explicitly declaring rainbow as a dependency so that we could pin it at a specific version. This was done to ensure the development gems could be installed on old versions of Ruby in CI (see f57347a).Now that sshkit no longer supports Ruby < 2.5, this workaround is no longer needed. This commit removes the explicit rainbow dev dependency.