Implement release workflow rehearsal functionality

[wakamsha]

Feature Request Summary

Allow rehearsing the release workflow on this repo with GitHub Actions.

Problem of Background

Semantic Release CLI can be run with the --dry-run option to preview pending releases. Currently, developers must do this on their own local machines, which requires secrets such as GITHUB_TOKEN, and is a lot of work.

Proposed Solution

Add a dry-run option to release workflows currently implemented as GitHub Actions. This will allow developers to walk through their release workflows from within the GitHub GUI.

Alternatives

Others