Bump devise from 3.5.6 to 4.7.1

Bumps [devise](https://github.com/plataformatec/devise) from 3.5.6 to 4.7.1.
- [Release notes](https://github.com/plataformatec/devise/releases)
- [Changelog](https://github.com/plataformatec/devise/blob/master/CHANGELOG.md)
- [Commits](heartcombo/devise@v3.5.6...v4.7.1)

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

Gemfile

@@ -9,7 +9,7 @@ gem 'twitter-bootstrap-rails'
 gem "font-awesome-rails"
 gem 'autoprefixer-rails', '~>5.2.0'
 # Use devise for authentication
-gem 'devise', '~>3.5.1'
+gem 'devise', '~>4.7.1'
 gem 'devise-bootstrap-views'
 # Use stripe for handling payments
 gem 'stripe'

Gemfile.lock

@@ -40,10 +40,10 @@ GEM
     autoprefixer-rails (5.2.1.3)
       execjs
       json
-    bcrypt (3.1.11)
+    bcrypt (3.1.13)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    builder (3.2.3)
+    builder (3.2.4)
     byebug (8.2.2)
     capybara (2.4.4)
       mime-types (>= 1.16)
@@ -66,12 +66,11 @@ GEM
     concurrent-ruby (1.1.5)
     crass (1.0.5)
     debug_inspector (0.0.2)
-    devise (3.5.6)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 3.2.6, < 5)
+      railties (>= 4.1.0)
       responders
-      thread_safe (~> 0.1)
       warden (~> 1.2.3)
     devise-bootstrap-views (0.0.8)
     diff-lcs (1.2.5)
@@ -133,13 +132,13 @@ GEM
     method_source (0.8.2)
     mime-types (2.99.3)
     mimemagic (0.3.3)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.4.0)
     minitest (5.13.0)
     multi_json (1.11.2)
     nenv (0.3.0)
     netrc (0.11.0)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.10.7)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.0.8)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -171,9 +170,9 @@ GEM
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
@@ -187,15 +186,16 @@ GEM
       activesupport (= 4.2.5)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (11.1.0)
+    rake (13.0.1)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
     rdoc (4.2.2)
       json (~> 1.4)
     ref (2.0.0)
-    responders (2.1.1)
-      railties (>= 4.2.0, < 5.1)
+    responders (2.4.1)
+      actionpack (>= 4.2.0, < 6.0)
+      railties (>= 4.2.0, < 6.0)
     rest-client (1.8.0)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 3.0)
@@ -250,7 +250,7 @@ GEM
     therubyracer (0.12.2)
       libv8 (~> 3.16.14.0)
       ref
-    thor (0.19.1)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.2)
     twitter-bootstrap-rails (3.2.2)
@@ -266,7 +266,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.1)
-    warden (1.2.6)
+    warden (1.2.7)
       rack (>= 1.0)
     web-console (2.3.0)
       activemodel (>= 4.0)
@@ -284,7 +284,7 @@ DEPENDENCIES
   byebug
   capybara (= 2.4.4)
   coffee-rails (~> 4.1.0)
-  devise (~> 3.5.1)
+  devise (~> 4.7.1)
   devise-bootstrap-views
   figaro
   font-awesome-rails