template: repin certified comparevi baseline to v0.6.6

[svelderrainruiz]

Summary

• repin the template default comparevi consumer baseline from v0.6.4 to v0.6.6
• update the template smoke workflow to render and consume the new certified tag
• align distributor docs with the shipped upstream baseline

Validation

• git diff --check
• rg -n "v0\.6\.4" /tmp/LabviewGitHubCiTemplate returns no matches
• local render smoke blocked on this host because cookiecutter is not installed; authoritative proof is the repo's template-smoke workflow on this PR