chore(deps): bump rack from 2.2.6.4 to 2.2.9 in /examples/ruby-api (#594)

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

Author: dependabot[bot]

examples/ruby-api/Gemfile.lock

@@ -8,7 +8,7 @@ GEM
     nio4r (2.7.0)
     puma (5.6.8)
       nio4r (~> 2.0)
-    rack (2.2.6.4)
+    rack (2.2.9)
     rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)