flaky TestCircuitBreaker_IsActiveWithDelay

[seizethedave]

--- FAIL: TestCircuitBreaker_IsActiveWithDelay (0.02s)
    circuitbreaker_test.go:147: 
        	Error Trace:	/__w/mimir/mimir/pkg/ingester/circuitbreaker_test.go:147
        	Error:      	Condition never satisfied
        	Test:       	TestCircuitBreaker_IsActiveWithDelay
method=Ingester.Shipper.Sync level=info msg="uploading new block to long-term storage" block=00000000010000000000000000
method=Ingester.Shipper.Sync level=debug msg="uploaded file" from=/tmp/TestShipper_DeceivingUploadErrors2211337208/001/00000000010000000000000000/index dst=00000000010000000000000000/index bucket="fs: /tmp/TestShipper_DeceivingUploadErrors2211337208/002"
method=Ingester.Shipper.Sync level=error msg="uploading new block to long-term storage failed" block=00000000010000000000000000 err="upload meta file: base name matches, will fail upload"
FAIL
FAIL	github.com/grafana/mimir/pkg/ingester	612.715s

https://github.com/grafana/mimir/actions/runs/11903347460/job/33170133994

(In Github CI.)