chore: prover rename leaf index next index #3063

Job	Run time
system-programs (account-compression, [ "cargo-test-sbf -p account-compression-test -- --test-thr...	27m 41s
system-programs (light-system-program, [ "cargo-test-sbf -p system-test -- --test-threads=1" ])	21m 47s
system-programs (light-registry, [ "cargo-test-sbf -p registry-test -- --test-threads=1" ])	13m 57s
system-programs (light-compressed-token, [ "cargo-test-sbf -p compressed-token-test -- --test-thr...	23m 54s
system-programs (system-cpi-test, [ "cargo-test-sbf -p system-cpi-test -- --test-threads=1" ])	16m 39s
system-programs (random-e2e-test, [ "RUST_MIN_STACK=8388608 cargo-test-sbf -p e2e-test -- --nocap...	15m 14s
	1h 59m 12s

Provide feedback