Log Message:
nginx: update to 1.20.2.

Changes with nginx 1.20.2                                        16 Nov 2021

    *) Feature: OpenSSL 3.0 compatibility.

    *) Bugfix: SSL variables might be empty when used in logs; the bug had
       appeared in 1.19.5.

    *) Bugfix: keepalive connections with gRPC backends might not be closed
       after receiving a GOAWAY frame.

    *) Bugfix: backend SSL connections in the stream module might hang after
       an SSL handshake.

    *) Bugfix: SSL connections with gRPC backends might hang if select,
       poll, or /dev/poll methods were used.

    *) Bugfix: in the $content_length variable when using chunked transfer
       encoding.

    *) Bugfix: requests might hang when using HTTP/2 and the "aio_write"
       directive.