docs(CHANGELOG.md): updating changelog and version files (#12133)

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Signed-off-by: kumahq[bot] <110050114+kumahq[bot]@users.noreply.github.com>
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versions.yml

@@ -1,57 +1,3 @@
-- edition: kuma
-  version: 1.2.3
-  release: 1.2.x
-  releaseDate: "2021-06-17"
-  endOfLifeDate: "2022-06-17"
-  branch: release-1.2
-- edition: kuma
-  version: 1.3.1
-  release: 1.3.x
-  releaseDate: "2021-08-26"
-  endOfLifeDate: "2022-08-26"
-  branch: release-1.3
-- edition: kuma
-  version: 1.4.1
-  release: 1.4.x
-  releaseDate: "2021-11-22"
-  endOfLifeDate: "2022-11-22"
-  branch: release-1.4
-- edition: kuma
-  version: 1.5.4
-  release: 1.5.x
-  releaseDate: "2022-02-24"
-  endOfLifeDate: "2023-02-24"
-  branch: release-1.5
-- edition: kuma
-  version: 1.6.5
-  release: 1.6.x
-  releaseDate: "2022-04-12"
-  endOfLifeDate: "2023-04-12"
-  branch: release-1.6
-- edition: kuma
-  version: 1.7.6
-  release: 1.7.x
-  releaseDate: "2022-06-16"
-  endOfLifeDate: "2023-06-16"
-  branch: release-1.7
-- edition: kuma
-  version: 1.8.8
-  release: 1.8.x
-  releaseDate: "2022-08-24"
-  endOfLifeDate: "2023-08-24"
-  branch: release-1.8
-- edition: kuma
-  version: 2.0.8
-  release: 2.0.x
-  releaseDate: "2022-11-04"
-  endOfLifeDate: "2023-11-04"
-  branch: release-2.0
-- edition: kuma
-  version: 2.1.7
-  release: 2.1.x
-  releaseDate: "2023-02-01"
-  endOfLifeDate: "2024-02-01"
-  branch: release-2.1
 - edition: kuma
   version: 2.2.9
   release: 2.2.x