Update diffy rubygem 3.1 -> 3.3

Gemfile

@@ -159,7 +159,7 @@ gem 'escape_utils', '~> 1.1'
 gem 'icalendar'
 
 # Diffs
-gem 'diffy', '~> 3.1.0'
+gem 'diffy', '~> 3.3'
 gem 'diff_match_patch', '~> 0.1.0'
 
 # Application server

Gemfile.lock

@@ -237,7 +237,7 @@ GEM
       rotp (~> 2.0)
     diff-lcs (1.3)
     diff_match_patch (0.1.0)
-    diffy (3.1.0)
+    diffy (3.3.0)
     discordrb-webhooks-blackst0ne (3.3.0)
       rest-client (~> 2.0)
     docile (1.3.1)
@@ -1195,7 +1195,7 @@ DEPENDENCIES
   devise (~> 4.6)
   devise-two-factor (~> 3.1.0)
   diff_match_patch (~> 0.1.0)
-  diffy (~> 3.1.0)
+  diffy (~> 3.3)
   discordrb-webhooks-blackst0ne (~> 3.3)
   doorkeeper (~> 5.0.2)
   doorkeeper-openid_connect (~> 1.6.3)