Update rake requirement from ~> 10.0 to ~> 12.3

Updates the requirements on [rake](https://github.com/ruby/rake) to permit the latest version.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v10.5.0...v12.3.3)

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -28,7 +28,7 @@ GEM
     multi_xml (0.6.0)
     pastel (0.8.0)
       tty-color (~> 0.5)
-    rake (10.5.0)
+    rake (12.3.3)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -67,7 +67,7 @@ DEPENDENCIES
   bundler (~> 1.7)
   coveralls
   covid19-cli!
-  rake (~> 10.0)
+  rake (~> 12.3)
   rspec (~> 3.0)
 
 BUNDLED WITH

covid19-cli.gemspec

@@ -26,6 +26,6 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "coveralls"
   spec.add_development_dependency "bundler", "~> 1.7"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "rspec", "~> 3.0"
 end