chore(deps-dev): bump puma from 5.3.1 to 5.6.4

Bumps [puma](https://github.com/puma/puma) from 5.3.1 to 5.6.4.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v5.3.1...v5.6.4)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -181,7 +181,7 @@ GEM
     mini_portile2 (2.6.1)
     minitest (5.14.4)
     nenv (0.3.0)
-    nio4r (2.5.5)
+    nio4r (2.5.8)
     nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
@@ -207,7 +207,7 @@ GEM
       pry (>= 0.10.4)
     psych (3.1.0)
     public_suffix (4.0.6)
-    puma (5.3.1)
+    puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)