Create automated release.yml CI workflow

[lavrovvalera]

Important

Link the implementing PR to this issue by including Closes #<issue_number>
in the PR description or commit message.

What

Create .github/workflows/release.yml — a workflow_dispatch workflow that
automates the Time module release pipeline:

• Accepts a tag input (e.g. v0.8.0)
• Runs build-linux.yml and build-qnx.yml as reusable workflows to verify the
  release commit builds cleanly on all platforms
• Collects the code coverage artifact
• Generates a draft GitHub Release populated from .github/RELEASE_TEMPLATE.md
  and the latest docs/release_notes/release_note_v_*.rst

Based on the pattern established in eclipse-score/lifecycle/.github/workflows/release.yml.

Acceptance Criteria

• .github/workflows/release.yml exists and is triggered by workflow_dispatch with a tag input
• Workflow runs Linux + QNX builds and fails the release if either fails
• Coverage artifact is downloaded and attached to the GitHub Release
• Draft release is created (not published) so a maintainer can review and publish
• .github/RELEASE_TEMPLATE.md is created with standard release body structure
• Release notes are picked up from docs/release_notes/release_note_v_*.rst if present

References

• Release process definition: Define Time module release process and versioning conventions #101
• Parent epic: Automate Release Verification Pipeline #108
• Lifecycle reference implementation: eclipse-score/lifecycle/.github/workflows/release.yml