Bump puma from 5.6.8 to 5.6.9

Bumps [puma](https://github.com/puma/puma) from 5.6.8 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@v5.6.8...v5.6.9)

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

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

Author: dependabot[bot]

Gemfile

@@ -35,7 +35,7 @@ gem 'rails', '~> 6.1.7.7'
 #gem 'sqlite3'
 gem 'pg', '~> 1.2.3'
 # Use Puma as the app server
-gem 'puma', '~> 5.6.8'
+gem 'puma', '~> 5.6.9'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets

Gemfile.lock

@@ -183,7 +183,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.2.3)
     public_suffix (6.0.1)
-    puma (5.6.8)
+    puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (2.2.9)
@@ -308,7 +308,7 @@ DEPENDENCIES
   letter_opener (~> 1.7.0)
   listen (>= 3.0.5, < 3.2)
   pg (~> 1.2.3)
-  puma (~> 5.6.8)
+  puma (~> 5.6.9)
   rails (~> 6.1.7.7)
   rb-readline
   rss (~> 0.3.1)