k3s-io/k3s v1.30.12+k3s1

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This release updates Kubernetes to v1.30.12, and fixes a number of issues.

For more details on what's new, see the Kubernetes release notes.

Changes since v1.30.11+k3s1:

• Improve readiness polling on node startup (#12035)
• Fix issue caused by default authorization-mode apiserver arg (#12043)
• Cleanup anonymous and named volumes for docker tests (#12077)
• Add support for secretbox encryption provider with the k3s secrets-encrypt command (#12065)
  • Users can now configure secrets encryption to use secretbox provider by setting the secrets-encryption-provider flag.
• Add error in certificate check (#12099)
• Backports for 2025-04 (#12106)
• Bump kine for nats-server/v2 CVE-2025-30215 (#12143)
• Drone Test Split and Reduction (#12149)
• More backports for 2025-04 (#12169)
• Fix handler panic when bootstrapper returns empty peer list (#12180)
• Bump traefik to v2.11.24 (#12191)
• Update to v1.30.12-k3s1 and Go 1.23.6 (#12208)

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