Bump github.com/containerd/containerd from 1.6.18 to 1.6.26

Bumps [github.com/containerd/containerd](https://github.com/containerd/containerd) from 1.6.18 to 1.6.26.
- [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/v1.6.18...v1.6.26)

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

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

go.mod

@@ -38,7 +38,7 @@ require (
 	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/containerd/containerd v1.6.18 // indirect
+	github.com/containerd/containerd v1.6.26 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect
 	github.com/deepmap/oapi-codegen v1.12.4 // indirect
 	github.com/felixge/httpsnoop v1.0.3 // indirect
@@ -67,7 +67,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
-	github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc2.0.20221005185240-3a7f492d3f1b // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
 	github.com/prometheus/procfs v0.9.0 // indirect
@@ -84,6 +84,7 @@ require (
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/tools v0.19.0 // indirect
 	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
 	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect