chore(workspace): use new `LocalChain::canonical_view` API

chore(workspace): use new `LocalChain::canonical_view` API

Updates the codebase to use the new convenience
`LocalChain::canonical_view` method in order to generate the
`CanonicalView`. Internally the convenience method follows the `sans-IO` approach,
separating the canonicalization algorithm from i/o operations, and it's
used as follows:

1. Create a new `CanonicalizationTask` with a `TxGraph`, by calling:
   `graph.canonicalization_task(params)`
2. Execute the canonicalization process with a chain oracle (e.g
   `LocalChain`, which implements `ChainOracle` trait), by calling:
   `chain.canonicalize(task, chain_tip)`