Bump puma from 5.6.4 to 6.4.0 in /src/supermarket

Bumps [puma](https://github.com/puma/puma) from 5.6.4 to 6.4.0.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v5.6.4...v6.4.0)

---
updated-dependencies:
- dependency-name: puma
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

src/supermarket/Gemfile.lock

@@ -454,7 +454,7 @@ GEM
     net-smtp (0.3.3)
       net-protocol
     net-ssh (6.1.0)
-    nio4r (2.5.8)
+    nio4r (2.5.9)
     nokogiri (1.14.2-x86_64-darwin)
       racc (~> 1.4)
     nokogiri (1.14.2-x86_64-linux)
@@ -534,7 +534,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (5.0.1)
-    puma (5.6.4)
+    puma (6.4.0)
       nio4r (~> 2.0)
     pundit (2.3.0)
       activesupport (>= 3.0.0)