chore(deps-dev): bump puma from 5.6.4 to 5.6.9

Bumps [puma](https://github.com/puma/puma) from 5.6.4 to 5.6.9.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v5.6.4...v5.6.9)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -11,7 +11,7 @@ group :development, :test do
   gem "faker"
   gem "fakeweb"
   gem "pry-rails"
-  gem "puma", "~> 5.0"
+  gem "puma", "~> 5.6"
   gem "rails", "~> 6.1.4"
   gem "rspec-rails"
   gem "solargraph", require: false

Gemfile.lock

@@ -157,7 +157,7 @@ GEM
     minitest (5.17.0)
     msgpack (1.5.3)
     nenv (0.3.0)
-    nio4r (2.5.8)
+    nio4r (2.7.3)
     nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
@@ -173,7 +173,7 @@ GEM
       method_source (~> 1.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    puma (5.6.4)
+    puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.6.3)
@@ -335,7 +335,7 @@ DEPENDENCIES
   guard-rspec
   listen (~> 3.3)
   pry-rails
-  puma (~> 5.0)
+  puma (~> 5.6)
   rails (~> 6.1.4)
   rails-erd
   rspec-rails