Adjust license in Fedora Spec according to LICENSE

fedora/jellyfin.spec

@@ -10,7 +10,7 @@ Name:           jellyfin
 Version:        10.8.0
 Release:        1%{?dist}
 Summary:        The Free Software Media System
-License:        GPLv3
+License:        GPLv2
 URL:            https://jellyfin.org
 # Jellyfin Server tarball created by `make -f .copr/Makefile srpm`, real URL ends with `v%%{version}.tar.gz`
 Source0:        jellyfin-server-%{version}.tar.gz