ci: bump clawhub to 0.8.0

[kome12]

Bumps the pinned clawhub version from 0.7.0 to 0.8.0 in the sync-clawhub workflow.

[nansen-pr-reviewer]

pr-reviewer Summary

✅ No issues found

The code review completed successfully with no findings.

Review effort: 1/5 (Trivial)

Summary

This PR is a straightforward dependency bump — it upgrades clawhub from 0.7.0 to 0.8.0 in the sync-clawhub.yml CI workflow. Both the login and sync steps are updated consistently. The change is minimal, low-risk, and follows the existing pattern of pinning clawhub to an explicit version via npx --yes clawhub@<version>. No findings.

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Token usage: 12 input, 1,334 output, 68,403 cache read, 13,428 cache write