Adapt to new release candidate

[sajanrajdev]

Tackles #5

• Swapped Sepolia contracts for latests
• Introduced new governance functions
  • setPrimaryOracle on EbtcFeed
  • setSecondaryOracle on EbtcFeed
  • Remove setFeeRecipient (now immutable)
  • Cleaner roles configuration
  • Direct pausing of redemptions and FLs by TechOps and Security Multisig
• Adapted tests and scripts accordingly
• Changed the occurances of the Ecosystem Multisig for Security Multisig
• Removed the Council multisig (won't be used in prod)

All tests are passing:

NOTE: There is a RC0.7 coming up. Nevertheless, governance functions won't change from rc0.6 so this setup should be enough for testing purposes. I ran the current setup against the adapted governance wiring script (which will be used with rc0.7 so, unless anything changes on the script after review is completed, rc0.6 should reflect the latest governance implementation.

This can be checked in the following PR.

Proceeded this way since rc0.7 is taking longer than expected and we need to conduct the testnet governance testing.

[sajanrajdev]

New and adapted tests are passing:

[sajanrajdev]

Thank you for the diligent reviews @rayeaster and @petrovska-petro.

@petrovska-petro, the Primary Oracle (and also the Secondary, really) would only be really swapped out in case of a security concern or commercial blockage and of course governance scrutiny would be required.

With regards to the Active Pool signature, good catch. The removal of the feeRecipientAddress setter will be included on RC0.7. I thought it was better to wait until this final release candidate is deployed to TestNet to generate new interfaces all around. But very good call, issue created for this: https://github.com/ebtc-protocol/ebtc-multisig/issues/23