feat: dump fetched b50

sdgb-cli/src/utils/helpers/mod.rs

@@ -20,6 +20,7 @@ use bincode::{BorrowDecode, Encode, borrow_decode_from_slice};
 
 use crate::{EARLY_QUIT, cache};
 
+#[allow(unused)]
 pub fn read_cache_keys(
     definition: TableDefinition<'_, u32, Vec<u8>>,
 ) -> Result<Vec<u32>, Box<dyn snafu::Error>> {