Bump rack from 2.2.8 to 3.0.9.1

Bumps [rack](https://github.com/rack/rack) from 2.2.8 to 3.0.9.1.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@v2.2.8...v3.0.9.1)

---
updated-dependencies:
- dependency-name: rack
  dependency-type: indirect
...

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

Gemfile.lock

@@ -202,16 +202,16 @@ GEM
     puma (5.6.8)
       nio4r (~> 2.0)
     racc (1.7.3)
-    rack (2.2.8)
+    rack (3.0.9.1)
     rack-mini-profiler (2.3.3)
       rack (>= 1.2.0)
-    rack-session (1.0.2)
-      rack (< 3)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
     rack-test (2.1.0)
       rack (>= 1.3)
-    rackup (1.0.0)
-      rack (< 3)
-      webrick
+    rackup (2.1.0)
+      rack (>= 3)
+      webrick (~> 1.8)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -256,9 +256,9 @@ GEM
       rubyzip (>= 1.2.2)
       websocket (~> 1.0)
     spring (4.0.0)
-    sprockets (4.0.2)
+    sprockets (4.2.1)
       concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
+      rack (>= 2.2.4, < 4)
     sprockets-rails (3.4.2)
       actionpack (>= 5.2)
       activesupport (>= 5.2)