feat(release/create): add support for "publish" input

[Copilot]

Release-create lacked a switch to keep releases as drafts and its purpose was underspecified.

• Inputs: Added publish input (default true) and passed it to release-drafter to control draft vs published releases.
• Docs: Tightened action description to highlight release creation/publishing and monorepo scoping; documented the new input in README usage and inputs table.

Example:

- uses: hoverkraft-tech/ci-github-publish/actions/release/create@<sha>
  with:
    prerelease: "false"
    publish: "false" # keep as draft

Original prompt

On action.yml, Add support for "publish" input, default true.
take advantage of this PR, to improve description, to tell more about this action behavior (keep it concise)

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