Add latest episode field

[lindseydew]

What does this change?

This adds a latestEpisode attribute to the PodcastSeries field so that we can add a playable button for the latest episode for cards of PODCAST_SERIES_CARD

How to test

How can we measure success?

Have we considered potential risks?

Images

Accessibility

• Tested with screen reader
• Navigable with keyboard
• Colour contrast passed
• The change doesn't use only colour to convey meaning

[gu-scala-library-release]

@lindseydew has published a preview version of this PR with release workflow run #103, based on commit 3150b8f:

1.0.37-PREVIEW.ldadd-latest-episode.2024-11-18T1259.3150b8fd

Want to make another preview release?

Click 'Run workflow' in the GitHub UI, specifying the ld/add-latest-episode branch, or use the GitHub CLI command:

gh workflow run release.yml --ref ld/add-latest-episode

Want to make a full release after this PR is merged?

Click 'Run workflow' in the GitHub UI, leaving the branch as the default, or use the GitHub CLI command:

gh workflow run release.yml

[gu-scala-library-release]

@lindseydew has published a preview version of this PR with release workflow run #105, based on commit 9285fe7:

1.0.37-PREVIEW.ldadd-latest-episode.2024-11-19T1637.9285fe70

Want to make another preview release?

Click 'Run workflow' in the GitHub UI, specifying the ld/add-latest-episode branch, or use the GitHub CLI command:

gh workflow run release.yml --ref ld/add-latest-episode

Want to make a full release after this PR is merged?

Click 'Run workflow' in the GitHub UI, leaving the branch as the default, or use the GitHub CLI command:

gh workflow run release.yml

[gu-scala-library-release]

@lindseydew has published a preview version of this PR with release workflow run #106, based on commit 0a67ee3:

1.0.37-PREVIEW.ldadd-latest-episode.2024-11-19T1722.0a67ee37

Want to make another preview release?

Click 'Run workflow' in the GitHub UI, specifying the ld/add-latest-episode branch, or use the GitHub CLI command:

gh workflow run release.yml --ref ld/add-latest-episode

Want to make a full release after this PR is merged?

Click 'Run workflow' in the GitHub UI, leaving the branch as the default, or use the GitHub CLI command:

gh workflow run release.yml

[gu-scala-library-release]

@lindseydew has published a preview version of this PR with release workflow run #111, based on commit 34e9edd:

1.0.39-PREVIEW.ldadd-latest-episode.2024-11-25T1223.34e9edd5

Want to make another preview release?

Click 'Run workflow' in the GitHub UI, specifying the ld/add-latest-episode branch, or use the GitHub CLI command:

gh workflow run release.yml --ref ld/add-latest-episode

Want to make a full release after this PR is merged?

Click 'Run workflow' in the GitHub UI, leaving the branch as the default, or use the GitHub CLI command:

gh workflow run release.yml

[waisingyiu]

LGTM