CI, Releases: Fix [dispatch-call]

What

Fixes the dispatch-call in the release pipeline.

Why

The input $CI_COMMIT_TAG is not passed with its value in the trigger, because of he "``"

How

The trigger is now included in a script scripts/releases/dispatch-call.sh.

Manually testing the MR

Tested in https://gitlab.com/nomadic-labs/tezos/-/jobs/12333955481 job

The result is https://github.com/tez-capital/tezos-macos-pipeline/actions/runs/19960222514

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR