Copyright for pqmagic source package in Nile.bedrock

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: PQMagic
Source: https://gitee.com/pqcrypto/pqmagic

Files: *
Copyright: 2017-2026 PQMagic Dev Team
License: Apache-2.0
 On Debian systems, the full text of the Apache License 2.0 can be found
 in /usr/share/common-licenses/Apache-2.0.