Intune can't manage servers.
BitLocker recovery passwords are only saved to AD and AAD at the time they are set (or reset). Thus, you must either rotate them (which can be done using Intune) or send a script to them to force them to save their keys to AAD. I generally prefer using the script as rotating the key for this purpose seems overkill to me. If you search the web for "BackupToAAD-BitLockerKeyProtector", which is the PowerShell cmdlet that does the heavy lifting here, you'll find lots of example scripts that do this with various levels or robustness, troubleshooting, and logging.