fix: add vrfDelay as a phase return value for ongoing auctions to reflect VRFdelays in polkadot

[TarikGul]

closes: #588

Breaking Change

Summary

This PR aims to reflect the addition of the AuctionStatus enum in polkadot for parachains, specifically the VRFDelay. When an auction is past its finishEnd block the auction is then in a vrfDelay phase.

Changes

• I updated the tests to reflect this change, I also spotted a minor issue in the tests and reversed the output results to reflect a real world scenario with the auctions.

• Added logic inside of the auctionsCurrent method for ParasService that will add a vrfDelay phase as a potential result.

• I added the vrfDelay result to the AuctionPhase type, and changed starting=> startPeriod, ending => endPeriod.

Overall there are 3 potential return values for a phase:

phase :
  startPeriod
  endPeriod
  vrfDelay

• Updated the docs

[emostov]

lgtm - just some suggestions on docs and the name of the enum variants .. although i am not sure if appending Period is worth it to align with better with https://github.com/paritytech/polkadot/blob/60341e125563cbf655ab686ac5cef370ac33d16d/runtime/common/src/traits.rs#L150-L164

[TarikGul]

@emostov This is ready to merge, just want to make sure whether we should append Period and change this PR to a breaking change, or keep as if and just add the vrfDelay

[emostov]

@emostov This is ready to merge, just want to make sure whether we should append Period and change this PR to a breaking change, or keep as if and just add the vrfDelay

Its already a breaking change because when we used to show ending we will now sometimes show vrfDelay. IMO we should change ending => endPeriod & starting => startPeriod to better align with the AuctionStatus enum

[TarikGul]

Ahh yes, the breaking change is there regardless because the new runtime logic is keeping AuctionInfo alive during the vrfDelay period. Good point. Updated starting => startPeriod, ending => endPeriod and reflected it in the docs. I will set up a release after I merge this in once the tests pass.