stakes: bounding number of stake accounts possible on chain [wip, don't review]

[ibhatt-jumptrading]

bumps banks footprint to 150gb

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.073486 s	0.073426 s	-0.082% ✅
backtest mainnet-368528500-perf snapshot load	NaN s	NaN s	NaN% ✅
backtest mainnet-368528500-perf total elapsed	73.485653 s	73.425557 s	-0.082% ✅
firedancer mem usage with mainnet.toml	1056.31 GiB	1512.31 GiB	43.169% ⚠️

[github-actions]

Performance Measurements ⏳

Suite	Baseline	New	Change
backtest mainnet-368528500-perf per slot	0.051441 s	0.051354 s	-0.169% ✅
backtest mainnet-368528500-perf snapshot load	NaN s	NaN s	NaN% ✅
backtest mainnet-368528500-perf total elapsed	51.440882 s	51.353875 s	-0.169% ✅
firedancer mem usage with mainnet.toml	1056.31 GiB	1554.31 GiB	47.145% ⚠️