Copyright for liblc3 source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: liblc3
Source: https://github.com/google/liblc3

Files: *
Copyright: 2022, Google LLC
License: Apache-2.0

Files: debian/*
Copyright: 2022 Collabora, Ltd.
License: Apache-2.0

License: Apache-2.0
 On Debian systems you can find the full text of the Apache License at
 /usr/share/common-licenses/Apache-2.0.