New execution phases in blocks endpoint

[Imod7]

Proposed Change

As soon as the two new phases, ApplyInherent and AfterInherent, proposed in this PR paritytech/polkadot-sdk#3666 are applied (PR merged and a new runtime release includes these phases), we should take them into account also in Sidecar.

Code Change

In the conditional statement here we check the different phases (ApplyExtrinsic, Finalization and Initialization) which correspond to the current phases in polkadot-sdk. As soon as the new phases (ApplyInherent and AfterInherent) are included, we should check for those in the same conditional statement.

Additional Information

Also related to this Sidecar issue #1538 and its fix PR #1541