[DRE-maint] Bug#691350: update rspec to latest upsteam release

[Praveen A]

package: ruby-rspec
severity: normal
version: 2.10.0-2

Many gems (rspec-rails and cucumber-rails for example) need rspec 2.11
to run their tests successfully. ITPs of these gems are blocked by
this.

Thanks
Praveen
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