[hf] include recipient in `updateableFingerprint`s

• in 33ab1d24, we refactored signal#sendMessage to no longer take recipientNumber as an argument, which in turn required sdMessageOf to always construct an SdMessage with a recipient (since #sendMessage would no longer merge a recipient in just before sending)
• we observed this constraint everywhere except in constructing sdMessages to pass to trustAndResend in cases up updated fingerprints
• the only downside from this was that failed messages were not resent to subscribers (fingerprints were still flagged and/or retrusted appropriately in all cases and notifications still went out for admins)
• this MR fixes the bug