Bump better_errors from 1.1.0 to 2.5.1

Bumps [better_errors](https://github.com/BetterErrors/better_errors) from 1.1.0 to 2.5.1.
- [Release notes](https://github.com/BetterErrors/better_errors/releases)
- [Changelog](https://github.com/BetterErrors/better_errors/blob/master/CHANGELOG.md)
- [Commits](BetterErrors/better_errors@v1.1.0...v2.5.1)

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

Author: dependabot-support

Gemfile.lock

@@ -589,9 +589,10 @@ GEM
     aws-sigv2 (1.0.1)
     aws-sigv4 (1.0.2)
     bcrypt (3.1.11)
-    better_errors (1.1.0)
+    better_errors (2.5.1)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
+      rack (>= 0.9.0)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     bitters (0.10.0)
@@ -624,7 +625,7 @@ GEM
       capybara (>= 2.0.2, < 2.4.0)
       json
     climate_control (0.2.0)
-    coderay (1.1.0)
+    coderay (1.1.2)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -666,6 +667,7 @@ GEM
       mail (~> 2.2)
     email_validator (1.4.0)
       activemodel
+    erubi (1.8.0)
     erubis (2.7.0)
     execjs (2.7.0)
     factory_girl (4.4.0)