rpm REFACTOR update libyang.spec from Fedora

libyang maintainer desired continuing with libyang package as opposed to
libyang2 - sync libyang.spec from Fedora upstream.
diff --git a/distro/config/apkg.toml b/distro/config/apkg.toml
index 95f92ed..a11781e 100644
--- a/distro/config/apkg.toml
+++ b/distro/config/apkg.toml
@@ -1,9 +1,9 @@
 [project]
-name = "libyang2"
+name = "libyang"
 make_archive_script = "tools/make-dev-archive.sh"
 
 [upstream]
-archive_url = "https://github.com/CESNET/libyang/archive/refs/tags/v{{ version }}.tar.gz"
+archive_url = "https://github.com/CESNET/libyang/archive/v{{ version }}.tar.gz"
 version_script = "tools/upstream-version.sh"
 
 [apkg]