Update rake requirement from ~> 10.0 to ~> 13.0 (#1)

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...v13.0.3)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -8,15 +8,15 @@ GEM
   remote: https://rubygems.org/
   specs:
     chronic (0.10.2)
-    rake (10.5.0)
+    rake (13.0.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   bundler (~> 1.17)
   lynx!
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.17.2

lynx.gemspec

@@ -37,5 +37,5 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency 'chronic', '~> 0.10.2'
   spec.add_development_dependency "bundler", "~> 1.17"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
 end