Bump govuk-lint from 3.11.3 to 3.11.4

Bumps [govuk-lint](https://github.com/alphagov/govuk-lint) from 3.11.3 to 3.11.4.
- [Release notes](https://github.com/alphagov/govuk-lint/releases)
- [Changelog](https://github.com/alphagov/govuk-lint/blob/master/CHANGELOG.md)
- [Commits](alphagov/govuk-lint@v3.11.3...v3.11.4)

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

Author: dependabot-preview[bot]

Gemfile.lock

@@ -109,8 +109,9 @@ GEM
       rest-client (~> 2.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    govuk-lint (3.11.3)
-      rubocop (~> 0.64)
+    govuk-lint (3.11.4)
+      rubocop (~> 0.72)
+      rubocop-rails (~> 2)
       rubocop-rspec (~> 1.28)
       scss_lint
     govuk_ab_testing (2.4.1)
@@ -264,13 +265,16 @@ GEM
       netrc (~> 0.8)
     robotex (1.0.0)
     rouge (3.5.1)
-    rubocop (0.71.0)
+    rubocop (0.72.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.6)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.7)
+    rubocop-rails (2.1.0)
+      rack (>= 1.1)
+      rubocop (>= 0.72.0)
     rubocop-rspec (1.33.0)
       rubocop (>= 0.60.0)
     ruby-progressbar (1.10.1)