Bump github.com/containerd/containerd from 1.6.12 to 1.6.18 (#334)

Bumps [github.com/containerd/containerd](https://github.com/containerd/containerd) from 1.6.12 to 1.6.18.
- [Release notes](https://github.com/containerd/containerd/releases)
- [Changelog](https://github.com/containerd/containerd/blob/main/RELEASES.md)
- [Commits](https://github.com/containerd/containerd/compare/v1.6.12...v1.6.18)

---
updated-dependencies:
- dependency-name: github.com/containerd/containerd
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -57,7 +57,7 @@ require (
 	github.com/chavacava/garif v0.0.0-20221024190013-b3ef35877348 // indirect
 	github.com/compose-spec/compose-go v1.8.0 // indirect
 	github.com/containerd/console v1.0.3 // indirect
-	github.com/containerd/containerd v1.6.12 // indirect
+	github.com/containerd/containerd v1.6.18 // indirect
 	github.com/containerd/continuity v0.3.0 // indirect
 	github.com/containerd/ttrpc v1.1.0 // indirect
 	github.com/containerd/typeurl v1.0.2 // indirect