reworks update_completed_data_indexes when inserting shreds #16676

Job	Run time
cargo-test-sbf (associated-token-account)	9m 59s
cargo-test-sbf (feature-proposal)	7m 37s
check (associated-token-account)	4m 8s
cargo-test-sbf (instruction-padding)	5m 52s
test_cli (single-pool)	14m 44s
check (feature-proposal)	3m 50s
cargo-test-sbf (memo)	7m 36s
test_cli (token-2022)	15m 27s
check (instruction-padding)	2m 38s
cargo-test-sbf (record)	5m 58s
check (memo)	1m 5s
cargo-test-sbf (single-pool)	9m 15s
check (record)	54s
cargo-test-sbf (slashing)	13m 21s
check (single-pool)	4m 59s
cargo-test-sbf (stake-pool)	10m 16s
check (slashing)	1m 22s
cargo-test-sbf (token-2022)	7m 25s
check (stake-pool)	2m 13s
check (token-2022)	3m 23s
	2h 12m 2s

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