Merge pull request #2717 from alphagov/fix-psych-version-incompatibility

Remove explicit irb dependency

Gemfile

@@ -16,7 +16,6 @@ gem "govuk_message_queue_consumer"
 gem "govuk_schemas"
 gem "govuk_sidekiq"
 gem "httparty"
-gem "irb", require: false
 gem "logging"
 gem "loofah"
 gem "nokogiri"

Gemfile.lock

@@ -184,10 +184,6 @@ GEM
     httpclient (2.8.3)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
-    io-console (0.6.0)
-    irb (1.8.1)
-      rdoc
-      reline (>= 0.3.8)
     jmespath (1.6.2)
     json (2.6.3)
     json-schema (4.0.0)
@@ -448,8 +444,6 @@ GEM
     pry-byebug (3.10.1)
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
-    psych (5.1.0)
-      stringio
     public_suffix (5.0.3)
     puma (6.3.1)
       nio4r (~> 2.0)
@@ -487,17 +481,13 @@ GEM
     rb-kqueue (0.2.8)
       ffi (>= 0.5.0)
     rbtree (0.4.6)
-    rdoc (6.5.0)
-      psych (>= 4.0.0)
     redis (5.0.6)
       redis-client (>= 0.9.0)
     redis-client (0.14.1)
       connection_pool
     redis-namespace (1.10.0)
       redis (>= 4)
     regexp_parser (2.8.1)
-    reline (0.3.8)
-      io-console (~> 0.5)
     representable (3.2.0)
       declarative (< 0.1.0)
       trailblazer-option (>= 0.1.1, < 0.2.0)
@@ -601,7 +591,6 @@ GEM
       rbtree
       set (~> 1.0)
     statsd-ruby (1.5.0)
-    stringio (3.0.8)
     thor (1.2.2)
     tilt (2.2.0)
     timecop (0.9.8)
@@ -650,7 +639,6 @@ DEPENDENCIES
   govuk_schemas
   govuk_sidekiq
   httparty
-  irb
   logging
   loofah
   mr-sparkle