Update dependency bootstrap to ~> 4.6.0 (#21)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Gemfile

@@ -14,7 +14,7 @@ gem 'awesome_print', require: false
 gem 'devise'
 gem 'slim-rails'
 gem 'jquery-rails'
-gem 'bootstrap', '~> 4.4.1'
+gem 'bootstrap', '~> 4.6.0'
 gem 'font_awesome5_rails'
 gem 'carrierwave'
 

Gemfile.lock

@@ -45,14 +45,14 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (9.0.0)
-    autoprefixer-rails (9.7.6)
+    autoprefixer-rails (10.2.4.0)
       execjs
     awesome_print (1.8.0)
     bcrypt (3.1.13)
     bindex (0.8.1)
     bootsnap (1.4.6)
       msgpack (~> 1.0)
-    bootstrap (4.4.1)
+    bootstrap (4.6.0)
       autoprefixer-rails (>= 9.1.0)
       popper_js (>= 1.14.3, < 2)
       sassc-rails (>= 2.0.0)
@@ -205,7 +205,7 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    sassc (2.3.0)
+    sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
       railties (>= 4.0.0)
@@ -237,7 +237,7 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.1)
+    sprockets-rails (3.2.2)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
@@ -270,7 +270,7 @@ PLATFORMS
 DEPENDENCIES
   awesome_print
   bootsnap (>= 1.1.0)
-  bootstrap (~> 4.4.1)
+  bootstrap (~> 4.6.0)
   carrierwave
   devise
   dotenv-rails