v2.6.8 — Fix Unbounded License Check

Fix

detect_license_changes() had no repo limit and iterated all inventory entries with gh_license set — potentially thousands of GitHub API calls causing 10+ minute CI runs.

Applied the same MAX_REPOS_DEFAULT=200 cap as the activity enrichment module.

Total enrichment time now: ~3-4 min (CNCF search + 200 activity + 200 license = ~400 GitHub API calls × 0.5s)

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