[deploy] Revert "Bump puma from 4.3.6 to 5.0.0 (#10393)" (#10413)

This reverts commit 9308c8b19b.

Gemfile

@@ -68,7 +68,7 @@ gem "omniauth-github", "~> 1.3" # OmniAuth strategy for GitHub
 gem "omniauth-twitter", "~> 1.4" # OmniAuth strategy for Twitter
 gem "patron", "~> 0.13.3" # HTTP client library based on libcurl, used with Elasticsearch to support http keep-alive connections
 gem "pg", "~> 1.2" # Pg is the Ruby interface to the PostgreSQL RDBMS
-gem "puma", "~> 5.0" # Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
+gem "puma", "~> 4.3" # Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
 gem "pundit", "~> 2.1" # Object oriented authorization for Rails applications
 gem "pusher", "~> 1.3" # Ruby library for Pusher Channels HTTP API
 gem "pusher-push-notifications", "~> 1.3" # Pusher Push Notifications Ruby server SDK

Gemfile.lock

@@ -476,7 +476,7 @@ GEM
     naught (1.1.0)
     nenv (0.3.0)
     netrc (0.11.0)
-    nio4r (2.5.4)
+    nio4r (2.5.3)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.3)
@@ -527,7 +527,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.6)
-    puma (5.0.0)
+    puma (4.3.6)
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
@@ -932,7 +932,7 @@ DEPENDENCIES
   pry (~> 0.13)
   pry-byebug (~> 3.8)
   pry-rails (~> 0.3)
-  puma (~> 5.0)
+  puma (~> 4.3)
   pundit (~> 2.1)
   pundit-matchers (~> 1.6)
   pusher (~> 1.3)