Bump rack from 2.2.9 to 3.1.7

Bumps [rack](https://github.com/rack/rack) from 2.2.9 to 3.1.7.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@v2.2.9...v3.1.7)

---
updated-dependencies:
- dependency-name: rack
  dependency-type: indirect
  update-type: version-update:semver-major
...

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

Gemfile.lock

@@ -25,10 +25,12 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.8.0)
-    rack (2.2.9)
-    rack-protection (3.2.0)
+    rack (3.1.7)
+    rack-protection (4.0.0)
       base64 (>= 0.1.0)
-      rack (~> 2.2, >= 2.2.4)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
     rainbow (3.1.1)
     rake (13.2.1)
     redis (5.2.0)
@@ -79,16 +81,17 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
-    sinatra (3.2.0)
+    sinatra (4.0.0)
       mustermann (~> 3.0)
-      rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.2.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.0.0)
+      rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
-    sinatra-contrib (3.2.0)
+    sinatra-contrib (4.0.0)
       multi_json (>= 0.0.2)
       mustermann (~> 3.0)
-      rack-protection (= 3.2.0)
-      sinatra (= 3.2.0)
+      rack-protection (= 4.0.0)
+      sinatra (= 4.0.0)
       tilt (~> 2.0)
     strscan (3.1.0)
     tilt (2.4.0)