fix: adjusted nSuperblockMaturityWindow to new logic for devnet/testnet

[ogabrielides]

Issue being fixed or feature implemented

Since #5525, MNs during the maturity window, will propose new triggers.

In CGovernanceManager::CreateSuperblockCandidate, SuperBlock creation is skipped when the bellow check is true:

if (nHeight % Params().GetConsensus().nSuperblockCycle < Params().GetConsensus().nSuperblockCycle - Params().GetConsensus().nSuperblockMaturityWindow) return std::nullopt;

Hence, the value of nSuperblockMaturityWindow must be less than nSuperblockCycle and greater than 0.

What was done?

Changed nSuperblockMaturityWindow for devnet and Testnet chain parameters to the following values:

nSuperblockCycle = 24
nSuperblockMaturityWindow = 8

How Has This Been Tested?

Breaking Changes

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation
• I have assigned this pull request to a milestone (for repository code-owners and collaborators only)

[UdjinM6]

makes sense, utACK

[PastaPastaPasta]

utACK for squash merge