vendor: update cri (no more libseccomp cgo dependency)

8448b92d23...8871d5cdf8

The cgo dependency on libseccomp was removed in containerd/cri#1548.

The `seccomp` build tag is now ignored (and the seccomp support is
always built-in).

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

vendor.conf

@@ -57,7 +57,7 @@ gotest.tools/v3                                     v3.0.2
 github.com/cilium/ebpf                              1c8d4c9ef7759622653a1d319284a44652333b28
 
 # cri dependencies
-github.com/containerd/cri                           8448b92d237e877bed1e4aa7a0baf0dee234dbcb # master
+github.com/containerd/cri                           8871d5cdf8102a7d5989c307f2a366946feb54ee # master
 github.com/davecgh/go-spew                          v1.1.1
 github.com/docker/docker                            4634ce647cf2ce2c6031129ccd109e557244986f
 github.com/docker/spdystream                        449fdfce4d962303d702fec724ef0ad181c92528
@@ -68,7 +68,6 @@ github.com/json-iterator/go                         v1.1.9
 github.com/modern-go/concurrent                     1.0.3
 github.com/modern-go/reflect2                       v1.0.1
 github.com/opencontainers/selinux                   v1.6.0
-github.com/seccomp/libseccomp-golang                v0.9.1
 github.com/tchap/go-patricia                        v2.2.6
 github.com/willf/bitset                             d5bec3311243426a3c6d1b7a795f24b17c686dbb # 1.1.10+ used by selinux pkg
 golang.org/x/crypto                                 bac4c82f69751a6dd76e702d54b3ceb88adab236