Security fix for the ALT Linux 9 package nginx version 1.20.1-alt1

1.20.1-alt1 built June 23, 2021 Anton Farygin in task 274712 June 17, 2021 Anton Farygin - 1.20.1 Fixes: CVE-2021-23017 - updated rtmp module to 1.2.2 - updated spnego snapshot to a06f9efc...