tokio-xmpp: impl PartialEq on event::Stanza

skip-changelog: Stanza hasn't been in a release yet.

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

tokio-xmpp/src/event.rs

@@ -21,7 +21,7 @@ pub(crate) fn make_id() -> String {
 }
 
 /// A stanza sent/received over the stream.
-#[derive(FromXml, AsXml, Debug)]
+#[derive(FromXml, AsXml, Debug, PartialEq)]
 #[xml()]
 pub enum Stanza {
     /// IQ stanza