Cardano Updates

Dijkstra era CDDL for `block`, add `block_body`

Co-authored-by: Alexey Kuleshevich <[email protected]>

Add plain DecCBOR instances for DijkstraBlockBodyRaw and
DijkstraBlockBody (needed for decoder equivalence tests), and a
custom ToExpr instance for DijkstraBlockBody. Add block_body to
the CddlSpec test suite.

Co-authored-by: Alexey Kuleshevich <[email protected]>

Replace the manual segmented-witness serialization with MemoBytes,
which simplifies the code significantly. The block body is now
serialized as a flat 3-element list [invalid_transactions, transactions,
peras_certificate] instead of 5 separate segments.

Also fix PerasCert to encode/decode as bytes (matching CDDL),
reimplement alignedValidFlags using IntSet, and expose
DijkstraBlockBodyRaw/MkDijkstraBlockBody from Internal module.

Co-authored-by: Alexey Kuleshevich <[email protected]>

- Add `blockBodySize` as a method on `EraBlockBody` with a default
  implementation using `EncCBORGroup`, replacing the standalone
  `bBodySize` function
- Remove `EncCBORGroup (BlockBody era)` superclass constraint from
  `EraBlockBody` so that eras can provide their own `blockBodySize`
  without needing `EncCBORGroup`

Co-authored-by: Alexey Kuleshevich <[email protected]>

Define HuddleRule instances for "block_body" and "peras_certificate"
in the Dijkstra era, with a custom CBOR generator for block_body
that generates valid transaction indices. Update the CDDL spec to
match the new block structure: block = [header, block_body].

Co-authored-by: Alexey Kuleshevich <[email protected]>

Change genArrayTerm from Gen to MonadGen so it can be used in
CBORGen contexts (e.g. custom CBOR generators for Huddle specs).

Changelog cardano node 11.0

It doesn't work reliably and is incompatible with a nix environment

This will use the correct package database

* Avoid attempted rebuilding by `cabal`
* Eliminate the need for restoring cache
* Reduce the size of artifacts passed between `build` and `test`
* Reduce the fragile duplication of logic between `build` and `test`

In `conwayGovTransition`, we remove the condition on
`hardforkConwayBootstrapPhase` for checking `ZeroTreasuryWithdrawals`.

We then replayed the preview, preprod and mainnet public chains with
this change which guarentees there were no empty treasury withdrawals
pre-Conway era.