Copyright for guetzli source package in Bookworm

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: guetzli
Source: https://github.com/google/guetzli

Files: *
Copyright: Copyright 2016 Google Inc.
License: Apache-2

Files: debian/*
Copyright: 2017 ChangZhuo Chen (陳昌倬) 
License: Apache-2

License: Apache-2
 Licensed 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.
 .
 Bits here from Apache Kudu (incubating), ASL 2.0
 .
 On Debian systems, the complete text of the Apache License Version 2.0
 can be found in `/usr/share/common-licenses/Apache-2.0'.