fix: correct version_file in release workflow to use composer.json

[roble]

This pull request updates the release workflow configuration to use composer.json as the version file instead of module.json. This ensures that versioning aligns with the project's dependency management system.

Release workflow configuration:

• Changed the version_file in .github/workflows/release.yml from module.json to composer.json to reflect the correct versioning file for the project.

[Copilot]

Pull request overview

This PR updates the repository’s release workflow to align automated semantic version bumps with the PHP dependency metadata by pointing the reusable semantic-release workflow at composer.json (instead of the previously configured module.json).

Changes:

• Updated .github/workflows/release.yml to set version_file to composer.json.
• Kept version_file_path as .version, which matches the reusable workflow’s documented JSON path for composer.json.

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