chore(deps): bump puma from 5.6.9 to 7.2.1 in /examples/ruby-api

Bumps [puma](https://github.com/puma/puma) from 5.6.9 to 7.2.1.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/main/History.md)
- [Commits](puma/puma@v5.6.9...v7.2.1)

---
updated-dependencies:
- dependency-name: puma
  dependency-version: 7.2.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/ruby-api/Gemfile.lock

@@ -8,8 +8,8 @@ GEM
     logger (1.7.0)
     mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.7.3)
-    puma (5.6.9)
+    nio4r (2.7.5)
+    puma (7.2.1)
       nio4r (~> 2.0)
     rack (3.2.6)
     rack-protection (4.2.0)