Bump rake from 13.0.3 to 13.1.0

Bumps [rake](https://github.com/ruby/rake) from 13.0.3 to 13.1.0.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.0.3...v13.1.0)

---
updated-dependencies:
- dependency-name: rake
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile

@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in sp-rails-saml.gemspec
 gemspec
 
-gem 'rake', '~> 13.0'
+gem 'rake', '~> 13.1'
 gem 'rspec', '~> 3.0'
 gem 'ruby-saml'
 

Gemfile.lock

@@ -126,7 +126,7 @@ GEM
       method_source
       rake (>= 0.13)
       thor (~> 1.0)
-    rake (13.0.3)
+    rake (13.1.0)
     rexml (3.2.5)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
@@ -166,7 +166,7 @@ DEPENDENCIES
   generator_spec
   pry
   rails (~> 6.1.4)
-  rake (~> 13.0)
+  rake (~> 13.1)
   rspec (~> 3.0)
   ruby-saml
   sp-rails-saml!