* Fix various sanity errors in plugins (#71736)
* Fix various sanity errors in plugins.
* Revert callback_type -> type transform.
* Undo paramiko_ssh 'connection' change, since this discrepancy is hardcoded in the plugin loader.
* Standardize on name and type (for callbacks).
* Fix existing author entries.
* Add 'Unknown (!UNKNOWN)' as author when author is missing.
* These are actually parsed as integers in the code.
* Revert "Add 'Unknown (!UNKNOWN)' as author when author is missing."
This reverts commit 29d1438aca.
(cherry picked from commit aff78f4cbc)
* Undo potentially disrupting normalizations.
* Add changelog fragment for #71736. (#72323)
(cherry picked from commit 0b2b82c0b6)
