Wrap release notes dependency subsection in dropdown

[torredil]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

The release-notes tool includes a dependency report by default, which provides valuable information about dependency changes between releases. However, this report can be quite lengthy and clutters the changelog, making it difficult for users to quickly scan the main changes (features, bug fixes, etc.).

Which issue(s) this PR fixes:

None.

Special notes for your reviewer:

Tested manually, see screenshots below for generated release notes diff.

• Without change:

• With change:

Does this PR introduce a user-facing change?

Wrap release notes dependency subsection in dropdown

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[torredil]

@xmudrii Small QOL improvement PTAL 🙏

The motivation for this: we are currently using release notes tool to generate our CHANGELOG over at https://github.com/kubernetes-sigs/aws-ebs-csi-driver/blob/master/CHANGELOG.md (and it works great!) however, the dependencies subsection is overwhelming. Rather than disabling it in the report, we'd like to add a dropdown, ty!

[xmudrii]

This looks good to me, thank you @torredil! But before we merge this, I have two questions:

• @saschagrunert -- is this something that could be integrated directly into go-modiff?
• @katcosgrove -- is this okay from the release team side? I'm not sure if this will affect k/k, but I assume it will.