chore: Remove some clippy complains for 1.95 (#44276)

This removes some complains that clippy will have in 1.95.
As this is mostly just match guards, it doesn't update MSRV.

Testing: This is equivalent exchanges, so current WPT would find
anything.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

components/script/dom/html/htmlvideoelement.rs

@@ -439,7 +439,7 @@ impl FetchResponseListener for PosterFrameFetchContext {
 
         let status_is_ok = metadata
             .as_ref()
-            .map_or(true, |m| m.status.in_range(200..300));
+            .is_none_or(|m| m.status.in_range(200..300));
 
         if !status_is_ok {
             self.cancelled = true;