[8.11] [DOCS] Adds 8.10.3 release notes (#168261)#168269

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kibanamachine merged 1 commit intoelastic:8.11from kibanamachine:backport/8.11/pr-168261

Oct 6, 2023

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Commits on Oct 6, 2023

[DOCS] Adds 8.10.3 release notes (elastic#168261 )
amyjtechwriter
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