license update: GPL-3.0+ COPYING files says package is under GPL-3.0+. OBS-URL: https://build.opensuse.org/request/show/304205 OBS-URL: https://build.opensuse.org/package/show/security/yubico-piv-tool?expand=0&rev=4
OBS-URL: https://build.opensuse.org/request/show/293264 OBS-URL: https://build.opensuse.org/package/show/security/yubico-piv-tool?expand=0&rev=3
OBS-URL: https://build.opensuse.org/request/show/286372 OBS-URL: https://build.opensuse.org/package/show/security/yubico-piv-tool?expand=0&rev=2
OBS-URL: https://build.opensuse.org/request/show/282536 OBS-URL: https://build.opensuse.org/package/show/security/yubico-piv-tool?expand=0&rev=1