Bump rack from 2.0.7 to 2.0.8 (#11493)

Bumps [rack](https://github.com/rack/rack) from 2.0.7 to 2.0.8.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rack/rack/compare/2.0.7...2.0.8)

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

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

Gemfile.lock

@@ -78,7 +78,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.1)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-protection (2.0.7)
       rack
     rake (13.0.1)