Feat/rc07

[sajanrajdev]

• Introduces Mainnet contracts RC0.7
• Introduces Sepolia version of RC0.7
• Adapts tests to RC0.7 changes:
  • Governance around new functions
  • Introduces Timelock batching for atomic coll feed source with redemption fee floor change
  • Adds and adapts tests to all of the above
  • Adapts CDP Ops tests for the fixed collateral (mimics Lido's stETH, which means that it also replicates its rounding issue, noted and workaround implemented)
  • Updates all Interfaces
  • Deployed a testnet, working, mock fallback Oracle and adapted test to use it (with its on-chain checks passing)
  • Lint on Solidity and Python

All tests are passing:

TODO: Add scripts for the new functions and make sure that non of the previous scripts broke.

[sajanrajdev]

Thank you very much for your review @petrovska-petro. The reason for adding stETH's Interface is for when the mainnet contracts are wired. Perhaps we should make the libraries use the interfaces for the collateral and price feed be chosen dynamically based on the chain. I attempted this but, for some reason, the script breaks whenever I try to call chain.id. This is why I haven't used the r instance of the registry. Could you check if it works on your side? I have been digging for a while with no luck.

Comments were addressed, lint was fixed and all tests are passing: