Add warning for synchronizer authority mismatch

[GuilhermeGSousa]

Addresses #64599

As proposed on the issue above, this PR adds a warning in case of authority mismatch between a node's spawner and synchronizer. If agreed I'd follow these changes with the fix to the replication system proposed by @Faless (also mencioned on the issue linked above).

[GuilhermeGSousa]

Just setup the clang formatter on my end, shouldn't cause an issue this time.

[GuilhermeGSousa]

A draft PR to fix this issue using @Faless 's fix is available here #66036

[Faless]

Sorry for the delay, this is good, by the 2 commits should be squashed together, see: https://docs.godotengine.org/en/stable/community/contributing/pr_workflow.html#the-interactive-rebase

[akien-mga]

Thanks!