rythm: fix ingestion slack time range #9948

Job	Run time
Benchmark	9m 41s
Build	1m 54s
Run integration tests (test-e2e)	24m 18s
Lint	4m 6s
Check jsonnet & tempo-mixin	47s
Run integration tests (test-integration-poller)	10m 2s
Run integration tests (test-e2e-deployments)	13m 35s
Run Unit Tests (test-with-cover-pkg)	3m 23s
Run integration tests (test-e2e-serverless)	7m 12s
Run Unit Tests (test-with-cover-tempodb)	16m 8s
Vendor check	1m 36s
Run Unit Tests (test-with-cover-tempodb-wal)	11m 41s
Run Unit Tests (test-with-cover-others)	12m 58s
Build technical documentation	21s
	1h 57m 42s

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