Set `rent_epoch` for updated sysvars to `RENT_EXEMPT_EPOCH` #12798

Job	Run time
check	3m 27s
cargo-test-sbf (token/program)	9m 21s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	19m 16s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	16m 19s
test (single-pool/cli, single-pool/program)	19m 23s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	11m 8s
test (token-upgrade/cli, token-upgrade/program)	17m 58s
cargo-test-sbf (token-upgrade/program)	9m 32s
cargo-test-sbf (feature-proposal/program)	9m 0s
cargo-test-sbf (governance/addin-mock/program, governance/program)	13m 35s
cargo-test-sbf (memo/program)	10m 15s
cargo-test-sbf (name-service/program)	9m 5s
cargo-test-sbf (stake-pool/program)	13m 52s
cargo-test-sbf (single-pool/program)	10m 27s
	2h 52m 38s

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