This fixes CVE-2021-3450 and CVE-2021-3449. Deployed on prod: $ kubectl -n nginx-system exec nginx-ingress-controller-5c69c5cb59-2f8v4 -- openssl version OpenSSL 1.1.1k 25 Mar 2021 Change-Id: I7115fd2367cca7b687c555deb2134b22d19a291a