Bump puma from 5.0.4 to 5.3.1

Bumps [puma](https://github.com/puma/puma) from 5.0.4 to 5.3.1.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v5.0.4...v5.3.1)

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

Author: dependabot[bot]

Gemfile

@@ -7,7 +7,7 @@ end
 
 gem("bcrypt", "~> 3.1.7")
 gem("jwt", "~> 2.1.0")
-gem("puma", "~> 5.0.0")
+gem("puma", "~> 5.3.1")
 gem("rails", "~> 5.2.3")
 gem("rubocop")
 gem("sqlite3")

Gemfile.lock

@@ -88,7 +88,7 @@ GEM
     parallel (1.20.1)
     parser (3.0.0.0)
       ast (~> 2.4.1)
-    puma (5.0.4)
+    puma (5.3.1)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -196,7 +196,7 @@ DEPENDENCIES
   database_cleaner
   jwt (~> 2.1.0)
   listen (~> 3.2.0)
-  puma (~> 5.0.0)
+  puma (~> 5.3.1)
   rails (~> 5.2.3)
   rspec
   rspec-mocks