Decrease used memory to prevent stack overflow (#563)

czkawka_core/src/duplicate.rs

@@ -739,7 +739,7 @@ impl DuplicateFinder {
                 .map(|(size, vec_file_entry)| {
                     let mut hashmap_with_hash: BTreeMap<String, Vec<FileEntry>> = Default::default();
                     let mut errors: Vec<String> = Vec::new();
-                    let mut buffer = [0u8; 1024 * 128];
+                    let mut buffer = [0u8; 1024 * 16];
 
                     atomic_file_counter.fetch_add(vec_file_entry.len(), Ordering::Relaxed);
                     for mut file_entry in vec_file_entry {