Bump rake from 12.3.0 to 12.3.1

Bumps [rake](https://github.com/ruby/rake) from 12.3.0 to 12.3.1.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v12.3.0...v12.3.1)

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

Author: dependabot-support

Gemfile.lock

@@ -15,7 +15,7 @@ GEM
       ast (~> 2.4.0)
     powerpack (0.1.1)
     rainbow (3.0.0)
-    rake (12.3.0)
+    rake (12.3.1)
     rubocop (0.54.0)
       parallel (~> 1.10)
       parser (>= 2.5)