Add shard id to queue processor related metrics

[taylanisikdemir]

What changed?
History's queue processors are created per shard by history engine. Logs had shard-id tag but metrics were missing it. So adding shard id tag to relevant metrics.

Why?
To improve overall monitoring of queue processor operations.

How did you test it?

1. Build and run

./scripts/buildkite/docker-build.sh
docker-compose -f docker/docker-compose.yml up

2. Visit prometheus UI: http://localhost:9090/graph
3. Query some queue processor metrics and validate shard_id is there

rate(task_batch_complete_counter{operation="TimerQueueProcessor"}[1m])

Potential risks
We default to 16k shards so cardinality of these queue processor metrics shouldn't be an issue. There's not other high cardinality tags in those metrics.