Bump rubocop-govuk from 5.1.15 to 5.1.16

Bumps [rubocop-govuk](https://github.com/alphagov/rubocop-govuk) from 5.1.15 to 5.1.16.
- [Changelog](https://github.com/alphagov/rubocop-govuk/blob/main/CHANGELOG.md)
- [Commits](alphagov/rubocop-govuk@v5.1.15...v5.1.16)

---
updated-dependencies:
- dependency-name: rubocop-govuk
  dependency-version: 5.1.16
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile

@@ -19,4 +19,4 @@ gem "json"
 gem "ostruct"
 gem "rake", "~> 13.3"
 gem "rspec", "~> 3.13.1"
-gem "rubocop-govuk", "~> 5.1.7"
+gem "rubocop-govuk", "~> 5.1.16"

Gemfile.lock

@@ -196,7 +196,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.4)
-    rubocop (1.76.2)
+    rubocop (1.77.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -213,8 +213,8 @@ GEM
     rubocop-capybara (2.22.1)
       lint_roller (~> 1.1)
       rubocop (~> 1.72, >= 1.72.1)
-    rubocop-govuk (5.1.15)
-      rubocop (= 1.76.2)
+    rubocop-govuk (5.1.16)
+      rubocop (= 1.77.0)
       rubocop-ast (= 1.45.1)
       rubocop-capybara (= 2.22.1)
       rubocop-rails (= 2.32.0)
@@ -275,7 +275,7 @@ DEPENDENCIES
   ostruct
   rake (~> 13.3)
   rspec (~> 3.13.1)
-  rubocop-govuk (~> 5.1.7)
+  rubocop-govuk (~> 5.1.16)
   tzinfo-data
   wdm (~> 0.1.0)