Bump browser from 2.4.0 to 2.5.3

Bumps [browser](https://github.com/fnando/browser) from 2.4.0 to 2.5.3.
- [Release notes](https://github.com/fnando/browser/releases)
- [Changelog](https://github.com/fnando/browser/blob/master/CHANGELOG.md)
- [Commits](fnando/browser@v2.4.0...v2.5.3)

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

Gemfile

@@ -50,7 +50,7 @@ gem 'airbrake-ruby', '1.7.1'
 gem 'aws-sdk-rails'
 gem 'bootsnap', require: false
 gem 'bootstrap-sass', '~> 3.3.5'
-gem 'browser', '~> 2.0', '>= 2.0.3'
+gem 'browser', '~> 2.5'
 gem 'compass-rails' # was using git master branch before
 gem 'config'
 gem 'envyable', require: 'envyable/rails-now'

Gemfile.lock

@@ -128,7 +128,7 @@ GEM
       sass (>= 3.3.4)
     braintree (2.54.0)
       builder (>= 2.0.0)
-    browser (2.4.0)
+    browser (2.5.3)
     builder (3.2.3)
     byebug (9.0.6)
     capybara (2.14.0)
@@ -576,7 +576,7 @@ DEPENDENCIES
   bootsnap
   bootstrap-sass (~> 3.3.5)
   braintree (~> 2.54.0)
-  browser (~> 2.0, >= 2.0.3)
+  browser (~> 2.5)
   byebug
   capybara
   compass-rails