💚 Constrain overcommit to Ruby 2.4+

Signed-off-by: Peter Boling <[email protected]>

Author: pboling

Gemfile

@@ -15,11 +15,14 @@ linting = minimum_version.call("2.0")
 danger = minimum_version.call("2.7")
 coverage = minimum_version.call("2.7")
 debug = minimum_version.call("2.4")
+overcommit = minimum_version.call("2.4")
+if overcommit
+  gem "overcommit", "~> 0.58"
+end
 if danger
   gem "danger", "~> 8.4"
 end
 if linting
-  gem "overcommit", "~> 0.58"
   gem "rubocop-md"
   gem "rubocop-minitest"
   gem "rubocop-ruby2_0", "~> 1.0"