chore(release): add release notes for 2.27.7-rc1

[armory-astrolabe]

Event

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        "chore(cd): update base orca version to 2023.02.03.15.10.20.release-1.27.x (#585)"
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        "chore(cd): update base service version to clouddriver:2023.01.27.17.41.53.release-1.27.x (#784)"
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    "timestamp": "2023-02-08 07:01:33",
    "version": "2.27.7-rc1"
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}