all: use expect attribute where possible

src/utils/buffd/ei_formatter.rs

@@ -42,7 +42,7 @@ impl<'a> EiMsgFormatter<'a> {
         self
     }
 
-    #[allow(dead_code)]
+    #[expect(dead_code)]
     pub fn long(&mut self, int: i64) -> &mut Self {
         self.write(uapi::as_bytes(&int));
         self

src/utils/buffd/formatter.rs

@@ -79,7 +79,7 @@ impl<'a> MsgFormatter<'a> {
         self.object(obj).uint(event)
     }
 
-    #[allow(dead_code)]
+    #[expect(dead_code)]
     pub fn array<F: FnOnce(&mut MsgFormatter<'_>)>(&mut self, f: F) -> &mut Self {
         let pos = self.meta.write_pos;
         self.uint(0);

src/utils/buffd/parser.rs

@@ -59,12 +59,11 @@ impl<'a, 'b> MsgParser<'a, 'b> {
         self.int().map(|i| ObjectId::from_raw(i as u32).into())
     }
 
-    #[allow(dead_code)]
+    #[expect(dead_code)]
     pub fn global(&mut self) -> Result<GlobalName, MsgParserError> {
         self.int().map(|i| GlobalName::from_raw(i as u32))
     }
 
-    #[allow(dead_code)]
     pub fn fixed(&mut self) -> Result<Fixed, MsgParserError> {
         self.int().map(Fixed)
     }