Context

This MR start to rename endorsement types in attestation in the protocol code base.

Manually testing the MR

This MR is a simple refactoring, CI Green should do it. You can check that every commits compile with dune build @src/proto_alpha/check

n/a Document the interface of any function added or modified (see the coding guidelines)
n/a Document any change to the user interface, including configuration parameters (see node configuration)
Provide automatic testing (see the testing guide).
n/a For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
Select suitable reviewers using the Reviewers field below.
Select as Assignee the next person who should take action on that MR

Edited Jul 03, 2023 by Albin Coquereau