Bump better_errors from 2.1.1 to 2.8.0

Bumps [better_errors](https://github.com/BetterErrors/better_errors) from 2.1.1 to 2.8.0.
- [Release notes](https://github.com/BetterErrors/better_errors/releases)
- [Commits](BetterErrors/better_errors@v2.1.1...v2.8.0)

---
updated-dependencies:
- dependency-name: better_errors
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -44,7 +44,7 @@ group :development, :test do
 
   # Debugging views gems
   gem 'binding_of_caller', '~> 0.7.2'
-  gem 'better_errors', '~> 2.1.1'
+  gem 'better_errors', '~> 2.8.0'
 
   # Testing gems
   gem 'm', '~> 1.3.1'

Gemfile.lock

@@ -76,9 +76,9 @@ GEM
       activesupport (>= 3.0.0)
     arel (6.0.4)
     bcrypt (3.1.13)
-    better_errors (2.1.1)
+    better_errors (2.8.0)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
       rack (>= 0.9.0)
     binding_of_caller (0.7.3)
       debug_inspector (>= 0.0.1)
@@ -111,7 +111,7 @@ GEM
     chunky_png (1.3.11)
     codeclimate-test-reporter (0.4.8)
       simplecov (>= 0.7.1, < 1.0.0)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-rails (4.1.1)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.1.x)
@@ -146,6 +146,7 @@ GEM
     docile (1.3.1)
     epic-editor-rails (0.2.4)
       railties (>= 3.2, < 5.0)
+    erubi (1.10.0)
     erubis (2.7.0)
     eventmachine (1.2.7)
     exception_notification (4.0.1)
@@ -452,7 +453,7 @@ DEPENDENCIES
   activeadmin (~> 1.1.0)
   acts-as-taggable-on (~> 3.4)
   auto_html!
-  better_errors (~> 2.1.1)
+  better_errors (~> 2.8.0)
   binding_of_caller (~> 0.7.2)
   bootstrap-generators (~> 3.3.1)
   bullet (~> 5.4.3)