Bump rack from 2.2.3 to 3.0.9.1

Bumps [rack](https://github.com/rack/rack) from 2.2.3 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@2.2.3...v3.0.9.1)

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

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

Gemfile.lock

@@ -71,12 +71,12 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    oauth2 (1.4.7)
-      faraday (>= 0.8, < 2.0)
+    oauth2 (1.4.11)
+      faraday (>= 0.17.3, < 3.0)
       jwt (>= 1.0, < 3.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (>= 1.2, < 3)
+      rack (>= 1.2, < 4)
     orbit_activities (0.2.2)
       http (~> 4.4)
       json (~> 2.5)
@@ -86,7 +86,7 @@ GEM
     parser (3.0.2.0)
       ast (~> 2.4.1)
     public_suffix (4.0.6)
-    rack (2.2.3)
+    rack (3.0.9.1)
     rainbow (3.0.0)
     rake (13.0.6)
     regexp_parser (2.1.1)
@@ -130,6 +130,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-20
+  x86_64-linux
 
 DEPENDENCIES
   byebug