Update dependencies

This also includes an upgrade of the nokogiri version to fix the
following vulnerability:

Name: nokogiri
Version: 1.10.1
Advisory: CVE-2019-11068
Criticality: Unknown
URL: sparklemotion/nokogiri#1892
Title: Nokogiri gem, via libxslt, is affected by improper access control vulnerability

Gemfile

@@ -25,7 +25,7 @@ group :development, :test do
 end
 
 group :test do
-  gem 'capybara'
+  gem 'capybara', '~> 3.15.0'
   gem 'factory_bot_rails'
   gem 'webmock'
   gem 'sinatra'

Gemfile.lock

@@ -44,7 +44,7 @@ GEM
     addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
     arel (6.0.4)
-    autoprefixer-rails (9.5.0)
+    autoprefixer-rails (9.5.1.1)
       execjs
     bcrypt (3.1.12)
     bootstrap-sass (3.4.1)
@@ -53,7 +53,7 @@ GEM
     builder (3.2.3)
     byebug (11.0.1)
     cancancan (1.17.0)
-    capybara (3.14.0)
+    capybara (3.15.1)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)
@@ -72,8 +72,8 @@ GEM
     execjs (2.7.0)
     factory_bot (5.0.2)
       activesupport (>= 4.2.0)
-    factory_bot_rails (5.0.1)
-      factory_bot (~> 5.0.0)
+    factory_bot_rails (5.0.2)
+      factory_bot (~> 5.0.2)
       railties (>= 4.2.0)
     ffi (1.10.0)
     globalid (0.4.2)
@@ -86,7 +86,7 @@ GEM
       haml (>= 4.0.6, < 5.0)
       html2haml (>= 1.0.1)
       railties (>= 4.0.1)
-    hashdiff (0.3.8)
+    hashdiff (0.3.9)
     html2haml (2.2.0)
       erubis (~> 2.7.0)
       haml (>= 4.0, < 6)
@@ -104,7 +104,7 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
-    nokogiri (1.10.1)
+    nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
     public_suffix (3.0.3)
     rack (1.6.11)
@@ -142,10 +142,10 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    regexp_parser (1.3.0)
+    regexp_parser (1.4.0)
     rspec-core (3.8.0)
       rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.2)
+    rspec-expectations (3.8.3)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-mocks (3.8.0)
@@ -160,10 +160,10 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    ruby_parser (3.13.0)
+    ruby_parser (3.13.1)
       sexp_processor (~> 4.9)
     safe_yaml (1.0.5)
-    sass (3.7.3)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -223,7 +223,7 @@ DEPENDENCIES
   bootstrap-sass (~> 3.3)
   byebug
   cancancan (~> 1.9)
-  capybara
+  capybara (~> 3.15.0)
   factory_bot_rails
   haml-rails (~> 0.9)
   launchy
@@ -240,4 +240,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.16.6
+   1.17.2