build(deps): bump github.com/containerd/containerd from 1.7.20 to 1.7.21

[dependabot[bot]]

Bumps github.com/containerd/containerd from 1.7.20 to 1.7.21.

Release notes

Sourced from github.com/containerd/containerd's releases.

containerd 1.7.21

Welcome to the v1.7.21 release of containerd!

The twenty-first patch release for containerd 1.7 contains various fixes and updates.

Highlights

• Regenerate introspection UUID if state is empty (#10510)
• Set stderr to empty string when using terminal on Windows (#10499)

Build and Release Toolchain

• Move builds to Go 1.22 and add support for testing with 1.23 (#10596)

Container Runtime Interface (CRI)

• Borrow latest wsstream from k8s v1.31.x to 1.7 (#10575)
• Ensure the CRIAPIV1Alpha2 warning's lastOccurrence is accurate (#10571)
• Make StopContainer idempotent (#10528)
• Make StopPodSandbox idempotent (#10527)

Go client

• Fix failed force deletion for tasks with PID 0 (#10523)

Runtime

• Fix packaged runc reporting incorrect version (#10559)
• Ensure /run/containerd gets created with correct perms (#10534)

Deprecations

• Ensure the CRIAPIV1Alpha2 warning's lastOccurrence is accurate (#10571)
• Update warnings for deprecated CRI config fields (#10512)

Please try out the release binaries and report any issues at https://github.com/containerd/containerd/issues.

Contributors

• Davanum Srinivas
• Samuel Karp
• Sebastiaan van Stijn
• Phil Estes
• Maksym Pavlenko
• Akhil Mohan
• Chris Henzie
• Derek McGowan
• Kazuyoshi Kato

... (truncated)

Commits

• 4727319 Merge pull request #10632 from chrishenzie/prepare-1.7.21
• 975f279 Prepare release notes for v1.7.21
• ddb856b Merge pull request #10633 from thaJeztah/1.7_downgrade_go_mod
• d63bd84 go.mod: keep minimum go version at go1.21
• 69ae5c0 Merge pull request #10596 from akhilerm/add-go-1.23-1.7
• c760280 update golangci-lint to 1.60.1
• 3b263d0 add go1.23.0, drop go1.21.x
• ac7da2e Merge pull request #10590 from zhsj/bpo-10562-1.7
• 09ca004 Fix TestNewBinaryIOCleanup on Go 1.23 and Linux 5.4
• 716c7b7 Merge pull request #10575 from dims/borrow-latest-wsstream-from-k8s-v1.31.x-t...
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