Bump govuk_publishing_components from 55.1.0 to 56.0.0

Bumps [govuk_publishing_components](https://github.com/alphagov/govuk_publishing_components) from 55.1.0 to 56.0.0.
- [Changelog](https://github.com/alphagov/govuk_publishing_components/blob/main/CHANGELOG.md)
- [Commits](alphagov/govuk_publishing_components@v55.1.0...v56.0.0)

---
updated-dependencies:
- dependency-name: govuk_publishing_components
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -184,7 +184,7 @@ GEM
     govuk_personalisation (1.1.0)
       plek (>= 1.9.0)
       rails (>= 6, < 9)
-    govuk_publishing_components (55.1.0)
+    govuk_publishing_components (56.0.0)
       govuk_app_config
       govuk_personalisation (>= 0.7.0)
       kramdown
@@ -566,7 +566,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rdoc (6.12.0)
+    rdoc (6.13.0)
       psych (>= 4.0.0)
     redis (5.4.0)
       redis-client (>= 0.22.0)