build(deps): bump github.com/containerd/containerd/api

Bumps [github.com/containerd/containerd/api](https://github.com/containerd/containerd) from 1.8.0-rc.0 to 1.8.0-rc.2.
- [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/api/v1.8.0-rc.0...api/v1.8.0-rc.2)

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

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

vendor/github.com/containerd/containerd/api/services/events/v1/doc.go

@@ -16,3 +16,8 @@
 
 // Package events defines the event pushing and subscription service.
 package events
+
+import types "github.com/containerd/containerd/api/types"
+
+// Deprecated: Use [types.Envelope].
+type Envelope = types.Envelope

vendor/github.com/containerd/containerd/api/services/ttrpc/events/v1/doc.go

@@ -16,3 +16,8 @@
 
 // Package events defines the ttrpc event service.
 package events
+
+import types "github.com/containerd/containerd/api/types"
+
+// Deprecated: Use [types.Envelope].
+type Envelope = types.Envelope