in testnet, spv expiration is a Maybe Word64, not Word64 #7303

Job	Run time
config	3s
Download test chain database	4s
Build (9.8.2, 3.12, ubuntu-22.04, false)	8m 53s
Build (9.10.1, 3.12, ubuntu-22.04, false)	6m 26s
Build (9.6.6, 3.12, ubuntu-22.04, false)	8m 13s
Build (9.8.2, 3.12, ubuntu-22.04, true)	7m 12s
Compaction tests	0s
Multi-node network tests	0s
Remote tests	0s
Benchmarks	0s
Unit tests	0s
Validate Devnet Database Snapshot and Replay Pact History	0s
Build and publish docker image	0s
Publish	0s
Run Integration Tests from remote repo	0s
	30m 51s

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