chore: Bump rack from 3.1.4 to 3.1.5 (#858)

Bumps [rack](https://github.com/rack/rack) from 3.1.4 to 3.1.5.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rack/rack/compare/v3.1.4...v3.1.5)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -33,7 +33,7 @@ gem 'kramdown'
 gem 'liquid'
 gem 'listen'
 gem 'mercenary'
-gem 'rack', '~> 3.1.4'
+gem 'rack', '~> 3.1.5'
 gem 'railties', '>= 5.2.2.1'
 gem 'rouge'
 gem 'rubocop'

Gemfile.lock

@@ -199,8 +199,6 @@ GEM
     nokogiri (1.16.5)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.16.5-arm-linux)
-      racc (~> 1.4)
     nokogiri (1.16.5-x86_64-linux)
       racc (~> 1.4)
     octokit (4.25.1)
@@ -222,7 +220,7 @@ GEM
       stringio
     public_suffix (5.0.5)
     racc (1.8.0)
-    rack (3.1.4)
+    rack (3.1.5)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -279,8 +277,6 @@ GEM
     sass-embedded (1.77.4)
       google-protobuf (>= 3.25, < 5.0)
       rake (>= 13)
-    sass-embedded (1.77.4-arm-linux-gnueabihf)
-      google-protobuf (>= 3.25, < 5.0)
     sass-embedded (1.77.4-x86_64-linux-gnu)
       google-protobuf (>= 3.25, < 5.0)
     sawyer (0.9.2)
@@ -338,7 +334,7 @@ DEPENDENCIES
   mini_racer (~> 0.12.0)
   minima!
   nokogiri (>= 1.10.4)
-  rack (~> 3.1.4)
+  rack (~> 3.1.5)
   railties (>= 5.2.2.1)
   rouge
   rubocop