[VPD-282]: [Mainnet] Add checkpoint IRMs for BNB chain Fermi upgrade

[Debugger022]

This PR adds interest rate model deployments to accommodate the increase in the BNB chain block production rate. Starting from the Fermi upgrade, the BNB chain will produce 70,080,000 blocks per year. Fermi upgrade will be live on bscmainnet from 2026-01-14 02:30:00 AM UTC.

Deployed contracts are:

• New _bpy70080000 rate models
• Checkpoint contracts, activating the updated rate models at exactly the specified timestamps
• A setter contract that would be invoked in the VIP

The other related contracts[PLP. Prime, VaiUnitroller, VenusLens] have already been deployed and merged in the bsctestnet PR here

bscmainnet deployments

• PrimeLiquidityProvider_Implementation: 0x46BED43b29D73835fF075bBa1A0002A1eD1E4de8
• Prime_Implementation: 0x1a6660059E61e88402bD34FC96C2332c5EeAF195
• VaiUnitroller_Implementation: 0xFD754b21F5dbbf6eb282911Cc0112cbF88190767
• VenusLens: 0x344cD779C5aAF3436795B49f7C375E716A20f527

Note: Use sourcify.dev to search for verified contracts.

[github-actions]

Package	Line Rate	Branch Rate	Health
contracts	100%	100%	✔
contracts.Admin	88%	41%	✔
contracts.Comptroller	100%	90%	✔
contracts.Comptroller.Diamond	95%	64%	✔
contracts.Comptroller.Diamond.facets	81%	69%	✔
contracts.Comptroller.Diamond.interfaces	100%	100%	✔
contracts.Comptroller.Types	100%	100%	✔
contracts.Comptroller.legacy	100%	100%	✔
contracts.Comptroller.legacy.Diamond	0%	0%	❌
contracts.Comptroller.legacy.Diamond.facets	0%	0%	❌
contracts.Comptroller.legacy.Diamond.interfaces	100%	100%	✔
contracts.DelegateBorrowers	100%	89%	✔
contracts.FlashLoan.interfaces	100%	100%	✔
contracts.Governance	68%	45%	➖
contracts.InterestRateModels	74%	59%	➖
contracts.Lens	41%	34%	❌
contracts.Liquidator	83%	60%	✔
contracts.Oracle	100%	100%	✔
contracts.PegStability	88%	84%	✔
contracts.Swap	87%	58%	✔
contracts.Swap.interfaces	100%	100%	✔
contracts.Swap.lib	81%	55%	✔
contracts.Tokens	100%	100%	✔
contracts.Tokens.Prime	96%	72%	✔
contracts.Tokens.Prime.Interfaces	100%	100%	✔
contracts.Tokens.Prime.libs	90%	76%	✔
contracts.Tokens.VAI	82%	53%	✔
contracts.Tokens.VRT	20%	9%	❌
contracts.Tokens.VTokens	65%	49%	➖
contracts.Tokens.VTokens.legacy	0%	0%	❌
contracts.Tokens.VTokens.legacy.Utils	0%	0%	❌
contracts.Tokens.XVS	19%	8%	❌
contracts.Tokens.test	100%	100%	✔
contracts.Utils	51%	31%	➖
contracts.VAIVault	50%	45%	➖
contracts.VRTVault	49%	36%	❌
contracts.XVSVault	63%	50%	➖
contracts.external	100%	100%	✔
contracts.lib	89%	71%	✔
Summary	56% (3623 / 6501)	42% (1366 / 3256)	➖

[fred-venus]

Is there any reason why we didn't verify on etherscan/bscscan ? It's fine for us to check sourcify.dev but users actually have no idea what sourcify is