[DO NOT MERGE] Replace published dates with metadata

[andysellick]

⚠️ This repo is Continuously Deployed: make sure you follow the guidance ⚠️

What / why

This PR depends on this change in the gem

• the published dates component is being retired, as it duplicates functionality of the metadata component
• replace all published dates components with metadata components, and update options (names of options differ between the two components)

See related PR: alphagov/govuk_publishing_components#5572

Notes for switching from the published dates to the metadata component:

• the history option needs to change to page_history
• the published option needs to change to first_published

It's worth noting the behaviour of this component on certain pages like this call to action page. There's a link at the top (in the metadata component) to See all updates, when clicked jumps to the published dates component at the bottom, and then auto-expands the Show all updates link. This is handled by some JS in the metadata component. The change now will be that the published dates component at the bottom of the page will be replaced with the metadata component, but it should all still function as before.

Examples:

• case study
• document collection
• fatality notice
• news article
• service manual guide
• help page
• call for evidence
• consultation
• detailed guide
• publication
• specialist document
• speech
• statistical data set

Visual changes

The metadata component has a slightly larger gap between rows of text, but otherwise the appearance should be identical.