Bump rake from 13.3.0 to 13.3.1

Bumps [rake](https://github.com/ruby/rake) from 13.3.0 to 13.3.1.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.3.0...v13.3.1)

---
updated-dependencies:
- dependency-name: rake
  dependency-version: 13.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -8,7 +8,7 @@ GEM
   specs:
     docile (1.4.0)
     power_assert (2.0.5)
-    rake (13.3.0)
+    rake (13.3.1)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)