Retroactively updates known issues for Defend and Security (#6813) (#6824)

* First draft

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* Adds known issue to other releases

* Adds more resolution details

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Benjamin Ironside Goldstein <[email protected]>

* periods

* Update docs/release-notes/8.16.asciidoc

Co-authored-by: Gabriel Landau <[email protected]>

* gabe's feedback

---------

Co-authored-by: Gabriel Landau <[email protected]>
Co-authored-by: Benjamin Ironside Goldstein <[email protected]>
(cherry picked from commit f4efddc)

Co-authored-by: Nastasha Solomon <[email protected]>

Author: mergify[bot]