docs: renumber packagist ADR to 0009

Signed-off-by: anilb <epipav@gmail.com>

Author: epipav

…006-packagist-worker-design-decisions.md …009-packagist-worker-design-decisions.mddocs/adr/0006-packagist-worker-design-decisions.md renamed to docs/adr/0009-packagist-worker-design-decisions.md docs/adr/0006-packagist-worker-design-decisions.md renamed to docs/adr/0009-packagist-worker-design-decisions.md

@@ -209,4 +209,4 @@ Note: triggering `seed` also chain-starts the full `metadata` drain (set
 Local smoke order: seed → metadata → (rank) → downloads lanes for
 critical-scoped writes. State lives in `packagist_package_state`
 (migration `V1783382400__packagist_worker.sql`); design decisions in
-`docs/adr/0006-packagist-worker-design-decisions.md`.
+`docs/adr/0009-packagist-worker-design-decisions.md`.