Bump puma from 3.12.6 to 4.3.12

Bumps [puma](https://github.com/puma/puma) from 3.12.6 to 4.3.12.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v3.12.6...v4.3.12)

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

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

Author: dependabot[bot]

Gemfile

@@ -17,7 +17,7 @@ gem 'mini_racer', '~> 0.2.4'
 gem 'newrelic_rpm'
 gem 'orderly'
 gem 'pg', '<= 1.0.0'
-gem 'puma', '<= 3.12.7'
+gem 'puma', '<= 4.3.13'
 gem 'pundit'
 gem 'rails', '~> 5.2.2.1'
 gem 'redis', '<= 4.0.2'

Gemfile.lock

@@ -330,7 +330,8 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.1.1)
-    puma (3.12.6)
+    puma (4.3.12)
+      nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
     rack (2.2.3)
@@ -593,7 +594,7 @@ DEPENDENCIES
   pg (<= 1.0.0)
   prometheus-client
   pry (<= 0.11.3)
-  puma (<= 3.12.7)
+  puma (<= 4.3.13)
   pundit
   rails (~> 5.2.2.1)
   redis (<= 4.0.2)