Bump rake from 13.0.6 to 13.1.0

Bumps [rake](https://github.com/ruby/rake) from 13.0.6 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@v13.0.6...v13.1.0)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -11,7 +11,7 @@ GEM
     docile (1.4.0)
     minitest (5.20.0)
     prettier_print (1.2.1)
-    rake (13.0.6)
+    rake (13.1.0)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)