mysql 8.0.19-0ubuntu5 autopkgtest regressed in release pocket

[Balint Reczey]

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-groovy/groovy/amd64/m/mysql-8.0/20200717_111832_d9d56@/log.gz
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[ 50%] main.ssl_crl_clients_valid [ fail ]
        Test ended at 2020-07-17 10:45:56

CURRENT_TEST: main.ssl_crl_clients_valid
mysqltest: At line 19: Command "$MYSQL $ssl_crl test -e "SHOW VARIABLES like '%ssl%';" 2>&1" failed.

Output from before failure:
ERROR 2026 (HY000): SSL connection error: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
exec of '/usr/lib/mysql-test/bin//mysql --defaults-file=/tmp/tmp.QkW6ogtG7H/var/my.cnf --ssl-ca=/usr/lib/mysql-test/std_data/crl-ca-cert.pem --ssl-key=/usr/lib/mysql-test/std_data/crl-server-key.pem --ssl-cert=/usr/lib/mysql-test/std_data/crl-server-cert.pem --ssl-crl=/usr/lib/mysql-test/std_data/crl-client-revoked.crl test -e "SHOW VARIABLES like '%ssl%';" 2>&1' failed, error: 256, status: 1, errno: 0.
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[Christian Ehrhardt  (paelzer)]

http://autopkgtest.ubuntu.com/packages/m/mysql-8.0/groovy/amd64

This has been fixed in one of the recent uploads.