Bump diffy from 3.4.0 to 3.4.1

Bumps [diffy](https://github.com/samg/diffy) from 3.4.0 to 3.4.1.
- [Release notes](https://github.com/samg/diffy/releases)
- [Changelog](https://github.com/samg/diffy/blob/main/CHANGELOG)
- [Commits](https://github.com/samg/diffy/commits)

---
updated-dependencies:
- dependency-name: diffy
  dependency-type: direct:production
...

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

Gemfile

@@ -30,7 +30,7 @@ gem 'chartkick', '~> 3.4'
 gem 'groupdate', '~> 4.3'
 
 # View stuff.
-gem 'diffy', '~> 3.3'
+gem 'diffy', '~> 3.4'
 gem 'jbuilder', '~> 2.10'
 gem 'rqrcode', '~> 1.1'
 gem 'will_paginate', '~> 3.3'

Gemfile.lock

@@ -102,7 +102,7 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    diffy (3.4.0)
+    diffy (3.4.1)
     docile (1.4.0)
     e2mmap (0.1.0)
     erubi (1.10.0)
@@ -320,7 +320,7 @@ DEPENDENCIES
   counter_culture (~> 2.0)
   coveralls (~> 0.8)
   devise (~> 4.7)
-  diffy (~> 3.3)
+  diffy (~> 3.4)
   e2mmap (~> 0.1)
   fastimage (~> 2.1)
   flamegraph (~> 0.9)