feat: keep smt memory #12933

Job	Run time
pr_2_artifact	7s
pr_2_artifact	7s
cargo check with stable	3m 35s
cargo check with stable	3m 35s
clippy	6m 5s
clippy	6m 5s
Upload Event File for Test Results	3s
Upload Event File for Test Results	3s
file licenses	10s
file licenses	10s
machete	1m 30s
machete	1m 30s
test (testnet, esmeralda)	8m 22s
test (testnet, esmeralda)	8m 22s
test (nextnet, nextnet)	8m 31s
test (nextnet, nextnet)	8m 31s
test (mainnet, stagenet)	8m 3s
test (mainnet, stagenet)	11m 34s
	1h 16m 23s

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