Bump puma from 6.4.0 to 6.4.3

Bumps [puma](https://github.com/puma/puma) from 6.4.0 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@v6.4.0...v6.4.3)

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

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

Gemfile.lock

@@ -237,7 +237,7 @@ GEM
       timeout
     net-smtp (0.4.0.1)
       net-protocol
-    nio4r (2.7.0)
+    nio4r (2.7.3)
     nokogiri (1.16.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
@@ -286,7 +286,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (6.0.0)
-    puma (6.4.0)
+    puma (6.4.3)
       nio4r (~> 2.0)
     puma_worker_killer (0.3.1)
       get_process_mem (~> 0.2)