Bump puma from 4.3.6 to 4.3.7 (#496)

Bumps [puma](https://github.com/puma/puma) from 4.3.6 to 4.3.7.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v4.3.6...v4.3.7)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

Gemfile.lock

@@ -263,7 +263,7 @@ GEM
       pry (~> 0.9)
       slop (~> 3.0)
     public_suffix (4.0.6)
-    puma (4.3.6)
+    puma (4.3.7)
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)