chore(deps): bump puma from 6.4.2 to 6.4.3 in /spec/test_app

Bumps [puma](https://github.com/puma/puma) from 6.4.2 to 6.4.3.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v6.4.2...v6.4.3)

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

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

spec/test_app/Gemfile.lock

@@ -29,7 +29,7 @@ GEM
     pg (1.5.6)
     prettier_print (1.2.1)
     prism (0.24.0)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     rack (3.0.11)
     rake (13.1.0)