chore: fix linting issues caused to update of rust/clippy to newer version

src/peer/download_peer.rs

@@ -83,7 +83,10 @@ impl FileManager {
     }
 
     fn extract_filename_from_path(full_path: &str) -> &str {
-        full_path.split(['/', '\\']).last().unwrap_or(full_path)
+        full_path
+            .split(['/', '\\'])
+            .next_back()
+            .unwrap_or(full_path)
     }
 
     fn create_download_path_from_filename(

src/utils/zlib.rs

@@ -72,7 +72,7 @@ pub fn deflate(input: &[u8]) -> Result<Vec<u8>> {
         return Err(SoulseekRs::CompressionError("invalid CINFO".to_string()));
     }
     let flg = r.read_byte()?;
-    if ((cmf as u32) * 256 + (flg as u32)) % 31 != 0 {
+    if !((cmf as u32) * 256 + (flg as u32)).is_multiple_of(31) {
         return Err(SoulseekRs::CompressionError(
             "CMF+FLG checksum failed".to_string(),
         ));