Bump golang.org/x/sync from 0.10.0 to 0.11.0 #402

Job	Run time
buildAndPush (onmetal-api-controller-manager, manager)	2m 48s
buildAndPush (onmetal-api-apiserver, apiserver)	3m 5s
buildAndPush (onmetal-api-machinepoollet, machinepoollet)	3m 4s
buildAndPush (onmetal-api-machinebroker, machinebroker)	3m 1s
buildAndPush (onmetal-api-orictl-machine, orictl-machine)	3m 5s
buildAndPush (onmetal-api-volumepoollet, volumepoollet)	2m 47s
buildAndPush (onmetal-api-volumebroker, volumebroker)	3m 2s
buildAndPush (onmetal-api-orictl-volume, orictl-volume)	2m 53s
buildAndPush (onmetal-api-bucketpoollet, bucketpoollet)	2m 46s
buildAndPush (onmetal-api-bucketbroker, bucketbroker)	3m 1s
buildAndPush (onmetal-api-orictl-bucket, orictl-bucket)	2m 46s
	32m 18s

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