build(deps): bump github.com/containernetworking/cni from 1.2.0 to 1.2.1

Bumps [github.com/containernetworking/cni](https://github.com/containernetworking/cni) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/containernetworking/cni/releases)
- [Commits](https://github.com/containernetworking/cni/compare/v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: github.com/containernetworking/cni
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -26,7 +26,7 @@ require (
 	github.com/containerd/plugin v0.1.0
 	github.com/containerd/ttrpc v1.2.5
 	github.com/containerd/typeurl/v2 v2.1.1
-	github.com/containernetworking/cni v1.2.0
+	github.com/containernetworking/cni v1.2.1
 	github.com/containernetworking/plugins v1.4.1
 	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc