Align autoscaling ADR with main

Author: shuheiktgw

docs/internals/adr/gaps/006-no-independent-auto-scaling.md

@@ -44,4 +44,5 @@ All signals equally affected. Independent scaling is signal-agnostic.
 
 - [ ] Evaluate separating the merge pipeline into a standalone compactor service
 - [ ] Design auto-scaling policies for each workload type (ingest QPS, query QPS, file backlog)
-- [ ] Investigate burst handling for ingest (overflow buffer, backpressure, burst lane)
+- [ ] Investigate burst handling for ingest (overflow buffer, backpressure, burst lane)
+