Use test gem

Gemfile

@@ -13,7 +13,7 @@ gem "govspeak"
 gem "govuk_ab_testing"
 gem "govuk_app_config"
 gem "govuk_document_types"
-gem "govuk_publishing_components"
+gem "govuk_publishing_components", git: "https://github.com/alphagov/govuk_publishing_components.git", branch: "deploy-try-to-update-govukfrontend"
 gem "plek"
 gem "rails-i18n"
 gem "rails_translation_manager"

Gemfile.lock

@@ -1,3 +1,19 @@
+GIT
+  remote: https://github.com/alphagov/govuk_publishing_components.git
+  revision: 61640e75da1085b7847219517dc12e51bb65b7dd
+  branch: deploy-try-to-update-govukfrontend
+  specs:
+    govuk_publishing_components (37.8.1)
+      govuk_app_config
+      govuk_personalisation (>= 0.7.0)
+      kramdown
+      plek
+      rails (>= 6)
+      rouge
+      sprockets (>= 3)
+      sprockets-rails
+      terser
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -213,15 +229,6 @@ GEM
     govuk_personalisation (0.16.0)
       plek (>= 1.9.0)
       rails (>= 6, < 8)
-    govuk_publishing_components (37.10.0)
-      govuk_app_config
-      govuk_personalisation (>= 0.7.0)
-      kramdown
-      plek
-      rails (>= 6)
-      rouge
-      sprockets (>= 3)
-      sprockets-rails
     govuk_schemas (4.7.0)
       json-schema (>= 2.8, < 4.2)
     govuk_test (4.0.2)
@@ -778,7 +785,7 @@ DEPENDENCIES
   govuk_ab_testing
   govuk_app_config
   govuk_document_types
-  govuk_publishing_components
+  govuk_publishing_components!
   govuk_schemas
   govuk_test
   i18n-coverage