Set block_index when attaching created canister #35526

Job	Run time
build	5m 51s
test-upgrade-downgrade	1m 56s
Same wasms for mainnet and local	13s
aggregator_test	6m 36s
Upload assets	8s
test-playwright-e2e-shard-1-of-2	5m 44s
test-playwright-e2e-shard-2-of-2	6m 45s
test-rest	3m 28s
test-upgrade-stable	1m 31s
test-test-account-api	1m 21s
build-pass	6s
	33m 39s

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