Update rake requirement from ~> 0.9 to ~> 13.0

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@rake-0.9.6...v13.0.3)

---
updated-dependencies:
- dependency-name: rake
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -58,7 +58,7 @@ GEM
     public_suffix (4.0.6)
     racc (1.5.2)
     rack (2.2.3)
-    rake (0.9.6)
+    rake (13.0.3)
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -96,7 +96,7 @@ DEPENDENCIES
   bundler (~> 1.3)
   guard (~> 1.1)
   guard-rspec (~> 2.0)
-  rake (~> 0.9)
+  rake (~> 13.0)
   rspec (~> 2.0)
   sfmc-fuelsdk-ruby!
 

marketingcloudsdk.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
 	spec.require_paths = ["lib"]
 
 	spec.add_development_dependency "bundler","~> 1.3"
-	spec.add_development_dependency 'rake','~>0.9'
+	spec.add_development_dependency 'rake','~>13.0'
 	spec.add_development_dependency "rspec",'~> 2.0'
 	spec.add_development_dependency "guard",'~> 1.1'
 	spec.add_development_dependency "guard-rspec",'~> 2.0'