fix(prosody): Fixes jibri util check to support occupant and jid.

resources/prosody-plugins/util.lib.lua

@@ -532,7 +532,7 @@ function is_sip_jibri_join(stanza)
 end
 
 function is_jibri(occupant)
-    return starts_with_one_of(occupant.jid, RECORDER_PREFIXES)
+    return starts_with_one_of(type(occupant) == "string" and occupant or occupant.jid, RECORDER_PREFIXES)
 end
 
 -- process a host module directly if loaded or hooks to wait for its load