feat: support per-runner-flavor SQS batch size and window in multi_runner_config #6816

Job	Run time
Verify module (latest)	19s
Terraform test (modules/runners)	18s
Verify examples (1.5.6, default)	35s
Verify examples (1.5.6, ephemeral)	39s
Verify examples (1.5.6, termination-watcher)	35s
Verify examples (1.5.6, multi-runner)	43s
Verify examples (latest, external-managed-ssm-secrets)	26s
Verify modules (latest, runner-binaries-syncer)	19s
Verify modules (1.5.6, runner-binaries-syncer)	22s
Verify module (1.5.6)	34s
Verify modules (1.5.6, ssm)	24s
Verify examples (latest, ephemeral)	23s
Verify examples (latest, termination-watcher)	20s
Verify examples (1.5.6, external-managed-ssm-secrets)	36s
Verify modules (1.5.6, download-lambda)	21s
Verify modules (1.5.6, runners)	25s
Verify examples (latest, prebuilt)	24s
Verify modules (1.5.6, webhook)	25s
Verify modules (1.5.6, termination-watcher)	24s
Verify modules (1.5.6, multi-runner)	23s
Verify modules (1.5.6, lambda)	27s
Verify modules (latest, multi-runner)	21s
Verify modules (latest, lambda)	17s
Verify modules (latest, download-lambda)	21s
Verify examples (1.5.6, prebuilt)	40s
Verify examples (latest, multi-runner)	25s
Verify modules (latest, termination-watcher)	19s
Verify modules (latest, ssm)	18s
Verify modules (1.5.6, setup-iam-permissions)	24s
Verify modules (latest, setup-iam-permissions)	22s
Verify modules (latest, webhook)	19s
Verify modules (1.5.6, ami-housekeeper)	24s
Verify examples (latest, default)	25s
Verify modules (latest, runners)	20s
Verify modules (latest, ami-housekeeper)	19s
	14m 36s

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