Bump govuk_publishing_components from 5.2.3 to 5.5.6

[dependabot-preview]

Bumps govuk_publishing_components from 5.2.3 to 5.5.6.

Changelog

Sourced from govuk_publishing_components's changelog.

5.5.6

• Add optional margin top flag for feedback component (PR #222)

5.5.5

• Add optional flags for spacing around document list component (PR #217)

5.5.4

Make changes released in 5.5.3 backwards compatible.

5.5.3

• Enforce white content in inverse component (PR #214).

5.5.2

• Add full-width flag to remove left and right padding when using a full width page header (PR #212).
• Update design of document list component for topic pages (PR #202)

5.5.1

• Fix bug in related_navigation helper that did not gracefully handle ordered
  related items that aren't tagged to a mainstream browse page (PR #210).

5.5.0

• Add new inverse header component (PR #203).

5.4.1

• Remove worldwide organisation links from the payload used by the related_navigation component, as they're not required.
• Fix bug where the correct number of mainstream browse pages weren't displaying
  in the related_navigation component in cases where a grandparent mainstream
  browse page is present (PR #205).

5.4.0

• Add document_list component from government-frontend, so that it can be used by collections. This is not a breaking change, but it is not backwards compatible with previous versions of the component. (PR #199)

5.3.0

• Add step by step navigation component helpers

Commits

• a808d62 Merge pull request #223 from alphagov/version-5.5.6
• 9605df5 Version 5.5.6
• 477ffd2 Merge pull request #222 from alphagov/add-margin-flag-feedback-component
• 25ecf4d Add margin_top flag to feedback component
• a90789b Merge pull request #221 from alphagov/version-5.5.5
• 9859dfe Version 5.5.5
• 359dee4 Merge pull request #217 from alphagov/add-spacing-document-list
• 2aa4d3e Merge pull request #220 from alphagov/release-5.5.4
• 991a232 Release 5.5.4
• 9a8ec70 Merge pull request #219 from alphagov/make-backwards-compat
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #1347.