Update charlock_holmes to 0.7.5 (#4620)

Gemfile

@@ -22,7 +22,7 @@ gem 'active_model_serializers', '~> 0.10'
 gem 'addressable', '~> 2.5'
 gem 'bootsnap'
 gem 'browser'
-gem 'charlock_holmes', '~> 0.7.3'
+gem 'charlock_holmes', '~> 0.7.5'
 gem 'cld3', '~> 3.1'
 gem 'devise', '~> 4.2'
 gem 'devise-two-factor', '~> 3.0'

Gemfile.lock

@@ -108,7 +108,7 @@ GEM
       xpath (~> 2.0)
     case_transform (0.2)
       activesupport
-    charlock_holmes (0.7.3)
+    charlock_holmes (0.7.5)
     chunky_png (1.3.8)
     cld3 (3.1.3)
       ffi (>= 1.1.0, < 1.10.0)
@@ -511,7 +511,7 @@ DEPENDENCIES
   capistrano-rbenv (~> 2.1)
   capistrano-yarn (~> 2.0)
   capybara (~> 2.14)
-  charlock_holmes (~> 0.7.3)
+  charlock_holmes (~> 0.7.5)
   cld3 (~> 3.1)
   climate_control (~> 0.2)
   devise (~> 4.2)