chore(docs): Release Notes for 4.22 (#36464)
chore(docs): Release Notes for 4.22 (#36464)

* chore(docs): Release Notes for 4.22

* Update index.md

* Add release notes from git history, open RFCs highlight

* Add contributors

* Update index.md

Co-authored-by: Josh <c8fbba6474efb04c8cef2ae8c5c1fa857de6079a@gmail.com>
Co-authored-by: Dustin Schau <ebaee564ece00cb92993ac654f558bf841806acd@users.noreply.github.com>
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