Enable reference integration verification 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/reference-integration.yml — a CI workflow that
triggers a smoke test of the Time module in the
SCORE Reference Integration
on every PR, ensuring the module integrates correctly into the full S-CORE
ecosystem before merging.

Based on the pattern from eclipse-score/lifecycle/.github/workflows/reference-integration.yml.

Note: the lifecycle version is currently disabled (if: false) due to
eclipse-score/lifecycle#84.
This task should track that upstream fix and enable the workflow once it is resolved.

Acceptance Criteria

• .github/workflows/reference-integration.yml exists and calls the reusable eclipse-score/reference_integration/.github/workflows/reusable_smoke-test.yml
• Workflow triggers on pull_request and merge_group
• module_name is set to score_time (or the correct BCR name)
• Upstream blocker (eclipse-score/lifecycle#84) is resolved or explicitly tracked as a known dependency

References

• Parent epic: Automate Release Verification Pipeline #108
• Lifecycle reference implementation: eclipse-score/lifecycle/.github/workflows/reference-integration.yml
• Upstream blocker: Restore integration job from reference-integration.yml once working correctly lifecycle#84