Update rake requirement from ~> 10.0 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@v10.5.0...v13.0.1)

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

Author: dependabot[bot]

BotManager.gemspec

@@ -37,7 +37,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.17"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "minitest", "~> 5.0"
 
   spec.add_dependency "aws-sdk-lexmodelbuildingservice", "~> 1.10.0"

Gemfile.lock

@@ -41,7 +41,7 @@ GEM
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
     rack (2.0.6)
-    rake (10.5.0)
+    rake (13.0.1)
 
 PLATFORMS
   ruby
@@ -50,7 +50,7 @@ DEPENDENCIES
   BotManager!
   bundler (~> 1.17)
   minitest (~> 5.0)
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.17.1