fix CI

It seems a clippy lint now shows a false positive, so code-refactoring
had to do the trick.

Author: Byron

gix-packetline/src/read/sidebands/async_io.rs

@@ -354,11 +354,9 @@ where
     F: FnMut(bool, &[u8]) -> ProgressAction + Unpin,
 {
     fn poll_read(mut self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut [u8]) -> Poll<std::io::Result<usize>> {
-        let nread = {
-            use std::io::Read;
-            let mut rem = ready!(self.as_mut().poll_fill_buf(cx))?;
-            rem.read(buf)?
-        };
+        use std::io::Read;
+        let mut rem = ready!(self.as_mut().poll_fill_buf(cx))?;
+        let nread = rem.read(buf)?;
         self.consume(nread);
         Poll::Ready(Ok(nread))
     }

gix-packetline/src/read/sidebands/blocking_io.rs

@@ -208,10 +208,8 @@ where
     F: FnMut(bool, &[u8]) -> ProgressAction,
 {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let nread = {
-            let mut rem = self.fill_buf()?;
-            rem.read(buf)?
-        };
+        let mut rem = self.fill_buf()?;
+        let nread = rem.read(buf)?;
         self.consume(nread);
         Ok(nread)
     }