Prepare release notes for v2.2.2

Signed-off-by: Samuel Karp <samuelkarp@google.com>

.mailmap

@@ -106,6 +106,7 @@ lengrongfu <1275177125@qq.com>
 Li Yuxuan <liyuxuan04@baidu.com> <darfux@163.com>
 Lifubang <lifubang@aliyun.com> <lifubang@acmcoder.com>
 Lu Jingxiao <lujingxiao@huawei.com>
+Luke Hinds <luke@stacklok.com> <123011167+lukefr09@users.noreply.github.com>
 Lucas Rattz <lucasrattz999@gmail.com> <lucas.rattz@syself.com>
 Mahamed Ali <cy@borg.dev>
 Maksym Pavlenko <pavlenko.maksym@gmail.com> <865334+mxpv@users.noreply.github.com>

releases/v2.2.2.toml

@@ -0,0 +1,27 @@
+# commit to be tagged for new release
+commit = "HEAD"
+
+project_name = "containerd"
+github_repo = "containerd/containerd"
+match_deps = "^github.com/(containerd/[a-zA-Z0-9-]+)$"
+ignore_deps = [ "github.com/containerd/containerd" ]
+
+# previous release
+previous = "v2.2.1"
+
+pre_release = false
+
+preface = """\
+The second patch release for containerd 2.2 contains various fixes and improvements.
+"""
+
+postface = """\
+### Which file should I download?
+* `containerd-<VERSION>-<OS>-<ARCH>.tar.gz`:         ✅Recommended. Dynamically linked with glibc 2.35 (Ubuntu 22.04).
+* `containerd-static-<VERSION>-<OS>-<ARCH>.tar.gz`:  Statically linked. Expected to be used on Linux distributions that do not use glibc >= 2.35. Not position-independent.
+
+In addition to containerd, typically you will have to install [runc](https://github.com/opencontainers/runc/releases)
+and [CNI plugins](https://github.com/containernetworking/plugins/releases) from their official sites too.
+
+See also the [Getting Started](https://github.com/containerd/containerd/blob/main/docs/getting-started.md) documentation.
+"""

version/version.go

@@ -24,7 +24,7 @@ var (
 	Package = "github.com/containerd/containerd/v2"
 
 	// Version holds the complete version number. Filled in at linking time.
-	Version = "2.2.1+unknown"
+	Version = "2.2.2+unknown"
 
 	// Revision is filled with the VCS (e.g. git) revision being used to build
 	// the program at linking time.