PMM-9374 external victoria metrics #9212

Job	Run time
Tests (mysql:5.6, mongo:4.2, postgres:10, percona/pmm-server:2.0.0)	7m 14s
Tests (mysql:5.7, mongo:4.4, postgres:11, percona/pmm-server:2.0.1)	7m 19s
Tests (mysql:8.0, mongo:4.4, postgres:12, percona/pmm-server:2.1.0)	7m 22s
Tests (mysql:8.0, mongo:4.4, postgres:13, percona/pmm-server:2.2.0)	9m 24s
Tests (percona:5.6, percona/percona-server-mongodb:4.2, perconalab/percona-distribution-postgresq...	9m 37s
Tests (percona:5.7, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	8m 46s
Tests (percona:8.0, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	8m 55s
Tests (mariadb:10.2, mongo:4.4, postgres:9.4, perconalab/pmm-server:dev-latest)	8m 6s
Tests (mariadb:10.3, percona/percona-server-mongodb:4.4, postgres:9.5, perconalab/pmm-server:dev-...	9m 25s
Tests (mariadb:10.4, postgres:9.6, perconalab/pmm-server:dev-latest)	9m 12s
	1h 25m 20s

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