[7.15] docs: update agent server compat (#5923)#6048

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bmorelli25 merged 1 commit intoelastic:7.15from bmorelli25:backport/7.15/pr-5923

Aug 26, 2021

+6-14

Commits on Aug 25, 2021

docs: update agent server compat (elastic#5923 )
bmorelli25
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