Update to v4.6.1

bundle exec rake 'update[v4.6.1]'

README.md

@@ -17,7 +17,7 @@ Please see the appropriate guide for your environment of choice:
 Add `bootstrap` to your Gemfile:
 
 ```ruby
-gem 'bootstrap', '~> 4.6.0'
+gem 'bootstrap', '~> 4.6.1'
 ```
 
 Ensure that `sprockets-rails` is at least v2.3.2.

assets/javascripts/bootstrap-sprockets.js

@@ -1,12 +1,12 @@
 //= require ./bootstrap/util
-//= require ./bootstrap/dropdown
-//= require ./bootstrap/tab
+//= require ./bootstrap/tooltip
+//= require ./bootstrap/popover
 //= require ./bootstrap/collapse
+//= require ./bootstrap/scrollspy
+//= require ./bootstrap/button
 //= require ./bootstrap/modal
+//= require ./bootstrap/tab
+//= require ./bootstrap/dropdown
+//= require ./bootstrap/carousel
 //= require ./bootstrap/alert
-//= require ./bootstrap/button
-//= require ./bootstrap/scrollspy
 //= require ./bootstrap/toast
-//= require ./bootstrap/tooltip
-//= require ./bootstrap/carousel
-//= require ./bootstrap/popover