Create annotated tags in CI using the release:tag_message keyword

What does this MR do and why?

This MR enables the creation of annotated tags in CI by optionally specifying tag_message under the release keyword.

Related to #363024 (closed)

Screenshots or screen recordings

The following job produces a lightweight tag:

release:
    stage: release
    image: registry.gitlab.com/gitlab-org/release-cli
    script:
        - echo "Creating release"
    release:
        tag_name: 'v0.0.1'
        description: 'Created with release keyword in .gitlab-ci.yml'

Adding the tag_message keyword causes the job to produce an annotated tag:

release:
    stage: release
    image: registry.gitlab.com/gitlab-org/release-cli
    script:
        - echo "Creating release"
    release:
        tag_name: 'v0.0.2'
        description: 'Created with release keyword in .gitlab-ci.yml'
        tag_message: 'Annotated tag created with release keyword in .gitlab-ci.yml'

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