Copyright for rust-fernet source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: fernet
Upstream-Contact:
 Alex Gaynor 
 Ben Bangert 
Source: https://github.com/mozilla-services/fernet-rs/

Files: *
Copyright:
 2018-2021 Alex Gaynor 
 2018-2021 Ben Bangert 
License: MPL-2.0

Files: debian/*
Copyright:
 2022 Debian Rust Maintainers 
 2022 Timo Aaltonen 
License: MPL-2.0

License: MPL-2.0
 Debian systems provide the MPL 2.0 in /usr/share/common-licenses/MPL-2.0