chore(deps): bump github.com/containerd/containerd from 1.5.9 to 1.6.6

Bumps [github.com/containerd/containerd](https:/containerd/containerd) from 1.5.9 to 1.6.6.
- [Release notes](https:/containerd/containerd/releases)
- [Changelog](https:/containerd/containerd/blob/main/RELEASES.md)
- [Commits](containerd/containerd@v1.5.9...v1.6.6)

---
updated-dependencies:
- dependency-name: github.com/containerd/containerd
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -3,33 +3,27 @@ module github.com/testcontainers/testcontainers-go
 go 1.13
 
 require (
- github.com/Microsoft/hcsshim v0.9.3 // indirect
  github.com/cenkalti/backoff/v4 v4.1.3
  github.com/containerd/cgroups v1.0.4 // indirect
- github.com/containerd/containerd v1.5.13
+ github.com/containerd/containerd v1.6.6
  github.com/containerd/continuity v0.3.0 // indirect
  github.com/docker/distribution v2.8.1+incompatible // indirect
  github.com/docker/docker v20.10.17+incompatible
  github.com/docker/go-connections v0.4.0
  github.com/docker/go-units v0.4.0
  github.com/go-redis/redis v6.15.9+incompatible
  github.com/go-sql-driver/mysql v1.6.0
- github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
  github.com/google/uuid v1.3.0
  github.com/magiconair/properties v1.8.6
  github.com/moby/sys/mount v0.3.3 // indirect
  github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6
- github.com/onsi/gomega v1.15.0 // indirect
- github.com/opencontainers/image-spec v1.0.2
+ github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799
  github.com/opencontainers/runc v1.1.3 // indirect
  github.com/stretchr/testify v1.8.0
- go.opencensus.io v0.23.0 // indirect
  golang.org/x/net v0.0.0-20220617184016-355a448f1bc9 // indirect
  golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
  golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c
- golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac // indirect
  google.golang.org/genproto v0.0.0-20220617124728-180714bec0ad // indirect
- gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
  gopkg.in/yaml.v3 v3.0.1
  gotest.tools/gotestsum v1.7.0
  gotest.tools/v3 v3.3.0