Bump puma from 3.12.1 to 4.3.12

Bumps [puma](https://github.com/puma/puma) from 3.12.1 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@v3.12.1...v4.3.12)

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

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

Gemfile

@@ -5,7 +5,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.6.10'
 
-gem 'puma', '~> 3.11'           # Use Puma as the app server
+gem 'puma', '~> 4.3'            # Use Puma as the app server
 gem 'rails', '~> 5.2.3'         # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'sass-rails', '~> 5.0'      # Use SCSS for stylesheets
 gem 'uglifier', '>= 1.3.0'      # Use Uglifier as compressor for JavaScript assets

Gemfile.lock

@@ -94,6 +94,7 @@ GEM
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.0)
+    ffi (1.15.5)
     ffi (1.15.5-x64-mingw32)
     fhir_client (5.0.3)
       activesupport (>= 3)
@@ -173,6 +174,8 @@ GEM
     nio4r (2.5.8)
     nokogiri (1.13.8-x64-mingw32)
       racc (~> 1.4)
+    nokogiri (1.13.8-x86_64-linux)
+      racc (~> 1.4)
     oauth2 (1.4.11)
       faraday (>= 0.17.3, < 3.0)
       jwt (>= 1.0, < 3.0)
@@ -182,13 +185,15 @@ GEM
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
+    pg (1.4.3)
     pg (1.4.3-x64-mingw32)
     popper_js (1.16.1)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (5.0.0)
-    puma (3.12.6)
+    puma (4.3.12)
+      nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.4)
     rack-test (2.0.2)
@@ -223,6 +228,11 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.5.0)
+    rest-client (2.1.0)
+      http-accept (>= 1.7.0, < 2.0)
+      http-cookie (>= 1.0.2, < 2.0)
+      mime-types (>= 1.16, < 4.0)
+      netrc (~> 0.8)
     rest-client (2.1.0-x64-mingw32)
       ffi (~> 1.9)
       http-accept (>= 1.7.0, < 2.0)
@@ -257,6 +267,8 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.4.0)
+      ffi (~> 1.9)
     sassc (2.4.0-x64-mingw32)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
@@ -294,6 +306,7 @@ GEM
       execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
+    unf_ext (0.0.8.2)
     unf_ext (0.0.8.2-x64-mingw32)
     unicode-display_width (2.3.0)
     web-console (3.7.0)
@@ -309,6 +322,7 @@ GEM
 
 PLATFORMS
   x64-mingw32
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (>= 1.1.0)
@@ -328,7 +342,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   pg
   pry (~> 0.12.2)
-  puma (~> 3.11)
+  puma (~> 4.3)
   rails (~> 5.2.3)
   rubocop
   sass-rails (~> 5.0)