Bump better_errors from 2.5.1 to 2.6.0

Bumps [better_errors](https://github.com/BetterErrors/better_errors) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/BetterErrors/better_errors/releases)
- [Commits](https://github.com/BetterErrors/better_errors/compare/v2.5.1...v2.6.0)

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

Gemfile.lock

@@ -74,7 +74,7 @@ GEM
       ZenTest (~> 4.5)
     bcrypt (3.1.13)
     bcrypt_pbkdf (1.0.1)
-    better_errors (2.5.1)
+    better_errors (2.6.0)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
@@ -232,7 +232,7 @@ GEM
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
-    rack (2.1.2)
+    rack (2.2.2)
     rack-mini-profiler (1.1.6)
       rack (>= 1.2.0)
     rack-proxy (0.6.5)