Bump webmock from 3.5.1 to 3.7.4 (#273)

Bumps [webmock](https://github.com/bblimke/webmock) from 3.5.1 to 3.7.4.
- [Release notes](https://github.com/bblimke/webmock/releases)
- [Changelog](https://github.com/bblimke/webmock/blob/master/CHANGELOG.md)
- [Commits](bblimke/webmock@v3.5.1...v3.7.4)

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

Author: dependabot-preview[bot]

Gemfile

@@ -39,7 +39,7 @@ group :test do
   gem 'minitest-rails-capybara'
   gem 'selenium-webdriver'
   gem 'vcr', '~> 4.0'
-  gem 'webmock', '~> 3.5'
+  gem 'webmock', '~> 3.7'
 end
 
 group :development, :test do

Gemfile.lock

@@ -58,8 +58,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     archive-zip (0.11.0)
       io-like (~> 0.3.0)
     arel (9.0.0)
@@ -141,7 +141,7 @@ GEM
       thor (~> 0.19.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    hashdiff (0.3.7)
+    hashdiff (1.0.0)
     hootstrap (0.12.0)
       bootstrap (~> 4.1.3)
       rails (>= 4.2.0)
@@ -206,7 +206,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     popper_js (1.14.5)
-    public_suffix (3.0.3)
+    public_suffix (4.0.1)
     puma (3.12.1)
     rack (2.0.7)
     rack-cors (1.0.3)
@@ -250,7 +250,7 @@ GEM
     ruby-progressbar (1.10.0)
     ruby_dep (1.5.0)
     rubyzip (1.2.2)
-    safe_yaml (1.0.4)
+    safe_yaml (1.0.5)
     sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -297,10 +297,10 @@ GEM
       activemodel (>= 5.0)
       bindex (>= 0.4.0)
       railties (>= 5.0)
-    webmock (3.5.1)
+    webmock (3.7.4)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
-      hashdiff
+      hashdiff (>= 0.4.0, < 2.0.0)
     webpacker (3.5.5)
       activesupport (>= 4.2)
       rack-proxy (>= 0.6.1)
@@ -352,7 +352,7 @@ DEPENDENCIES
   uglifier (>= 1.3.0)
   vcr (~> 4.0)
   web-console (>= 3.3.0)
-  webmock (~> 3.5)
+  webmock (~> 3.7)
   webpacker (~> 3.5)
 
 BUNDLED WITH