chore(deps): relax version constraint on bundler

Author: DirtyF

jekyll-gist.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "octokit", "~> 4.2"
-  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "bundler"
   spec.add_development_dependency "jekyll", ">= 3.5"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"