Bump rake dependency to ~>13.0

Author: agrare

fog-kubevirt.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
 
   spec.add_development_dependency "minitest", "~> 5.11"
-  spec.add_development_dependency "rake", "~> 12.3"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "rubocop", "~> 0.67"
   spec.add_development_dependency "vcr", "~> 4.0"