Move all methods to v1

[aatifsyed]

As a prerequisite to #3960, following the failure of #4516, I think we should, for all methods:

• bump API_VERSION: ApiVersion = ApiVersion::V1 if possible.

This should be done in parts, as our tests will break when we come across incompatible methods.

Adding support back in for V0 should be a future task.

This is necessary for producing an up-to-date Common Node API spec - we must be confident that all methods are V1, so we should prioritize Common Node API methods

[hanabi1224]

FYI, as of CI in #4448 run, all RPC methods were V1 compatible