fix: clippy lint (#80)

* clippy(merge_iterator): fix `clippy::non_canonical_partial_ord_impl` lint.

* clippy(bloom): fix `clippy::manual_clamp` lint.

* clippy(compact): fix `clippy::assigning_clones` lint.

* clippy(key): fix `clippy::legacy_numeric_constants` lint.

* clippy(mem_table): fix `clippy::missing_transmute_annotations` lint.

mini-lsm-starter/src/table/bloom.rs

@@ -72,7 +72,7 @@ impl Bloom {
     /// Build bloom filter from key hashes
     pub fn build_from_key_hashes(keys: &[u32], bits_per_key: usize) -> Self {
         let k = (bits_per_key as f64 * 0.69) as u32;
-        let k = k.min(30).max(1);
+        let k = k.clamp(1, 30);
         let nbits = (keys.len() * bits_per_key).max(64);
         let nbytes = (nbits + 7) / 8;
         let nbits = nbytes * 8;