coreos-overlay: Keyword containerd-2.1 and runc-1.3

Containerd-2.0 is out of support next week, containerd-2.1 has 6 more months of
support and requires runc-1.3. Containerd-2.1 also supports the erofs
snapshotter.

Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>

Author: jepio

sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords

@@ -114,3 +114,6 @@ sys-apps/azure-vm-utils
 =sys-devel/binutils-2.45-r1 ~arm64
 =sys-fs/lxcfs-6.0.4 ~arm64
 =sys-libs/binutils-libs-2.45-r1 ~arm64
+
+=app-containers/containerd-2.1* ~amd64 ~arm64
+=app-containers/runc-1.3* ~amd64 ~arm64