build(deps): bump github.com/containernetworking/cni from 1.2.2 to 1.2.3

Bumps [github.com/containernetworking/cni](https://github.com/containernetworking/cni) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/containernetworking/cni/releases)
- [Commits](https://github.com/containernetworking/cni/compare/v1.2.2...v1.2.3)

---
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>

vendor/github.com/containernetworking/cni/libcni/api.go

@@ -817,6 +817,8 @@ func (c *CNIConfig) GCNetworkList(ctx context.Context, list *NetworkConfigList,
 		}
 		if args != nil {
 			inject["cni.dev/valid-attachments"] = args.ValidAttachments
+			// #1101: spec used incorrect variable name
+			inject["cni.dev/attachments"] = args.ValidAttachments
 		}
 
 		for _, plugin := range list.Plugins {