chore: Fix several style lints (#17488)

It's not comprehensive enough to start linting on `style` group, but
hey, it's a start.

Release Notes:

- N/A

crates/release_channel/src/lib.rs

@@ -120,10 +120,7 @@ impl ReleaseChannel {
 
     /// Returns whether we want to poll for updates for this [`ReleaseChannel`]
     pub fn poll_for_updates(&self) -> bool {
-        match self {
-            ReleaseChannel::Dev => false,
-            _ => true,
-        }
+        !matches!(self, ReleaseChannel::Dev)
     }
 
     /// Returns the display name for this [`ReleaseChannel`].