Bump puma from 6.4.2 to 6.4.3 in /pricing_catalog_rails_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] <[email protected]>

pricing_catalog_rails_app/Gemfile.lock

@@ -174,7 +174,7 @@ GEM
       timeout
     net-smtp (0.4.0.1)
       net-protocol
-    nio4r (2.7.0)
+    nio4r (2.7.3)
     nokogiri (1.16.0-aarch64-linux)
       racc (~> 1.4)
     nokogiri (1.16.0-arm-linux)
@@ -190,7 +190,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.4)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (3.0.8)