add cost service swagger (#4474) #588

Job	Run time
image-build (database)	1m 51s
image-build (pay)	1m 15s
image-build (account)	2m 56s
image-build (minio)	1m 52s
resolve-modules	5s
save-sealos / save-sealos	26s
golangci-lint (./service/pay)	38s
golangci-lint (./service/database)	1m 1s
golangci-lint (./service)	1m 12s
golangci-lint (./service/account)	1m 23s
build-cluster-image (database)	31s
build-cluster-image (pay)	51s
build-cluster-image (account)	1m 10s
build-cluster-image (minio)	31s
	15m 42s

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