chore: add license header to fix ci

Author: luoyuxia

crates/fluss/src/row/compacted/compacted_row_writer.rs

@@ -33,7 +33,7 @@ impl CompactedRowWriter {
 
     pub fn new(field_count: usize) -> Self {
         // bitset width in bytes, it should be in CompactedRow
-        let header_size = (field_count + 7) / 8;
+        let header_size = field_count.div_ceil(8);
         let cap = cmp::max(64, header_size);
 
         let mut buffer = BytesMut::with_capacity(cap);
@@ -90,7 +90,7 @@ impl CompactedRowWriter {
     }
 
     pub fn write_byte(&mut self, value: u8) {
-        self.write_raw(&[value as u8]);
+        self.write_raw(&[value]);
     }
 
     pub fn write_binary(&mut self, bytes: &[u8], length: usize) {

crates/fluss/src/row/compacted/mod.rs

@@ -1 +1,18 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
 mod compacted_row_writer;