v2.0: Handle deprecated Instructions sysvar methods (backport of #1959) #6824

Job	Run time
check	3m 39s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	19m 6s
test (single-pool/cli, single-pool/program)	18m 56s
test (token-upgrade/cli, token-upgrade/program)	17m 11s
cargo-test-sbf (token/program)	9m 0s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	17m 46s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	10m 6s
cargo-test-sbf (token-upgrade/program)	9m 20s
cargo-test-sbf (feature-proposal/program)	13m 34s
cargo-test-sbf (governance/addin-mock/program, governance/program)	12m 57s
cargo-test-sbf (memo/program)	8m 58s
cargo-test-sbf (name-service/program)	10m 45s
cargo-test-sbf (stake-pool/program)	12m 53s
cargo-test-sbf (single-pool/program)	10m 5s
	2h 54m 16s

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