alpm_pkg_is_core_package: handle other msys2-runtime versions

[lazka]

We currently have various msys2-runtime packages with different versions (for older Windows, 32bit etc, test versions) which currently don't get the core update treatment because we just have a hardcoded list in pacman:

msys2-pacman/lib/libalpm/package.c

Lines 813 to 819 in 4903343

	strcmp(pkg->name, "bash") == 0 ||
	strcmp(pkg->name, "filesystem") == 0 ||
	strcmp(pkg->name, "mintty") == 0 ||
	strcmp(pkg->name, "msys2-runtime") == 0 ||
	strcmp(pkg->name, "msys2-runtime-devel") == 0 ||
	strcmp(pkg->name, "pacman") == 0 ||
	strcmp(pkg->name, "pacman-mirrors") == 0;

We should expand that to also handle "msys2-runtime-" and "msys2-runtime--devel".