FIx LOG_DB errors

We did not do a conversion to unicode as needed

omemo/omemo/state.py

@@ -146,7 +146,7 @@ class OmemoState:
                     sid))
                 return
 
-        result = aes_decrypt(key, iv, payload)
+        result = unicode(aes_decrypt(key, iv, payload))
         log.debug("Decrypted msg ⇒ " + result)
         return result