Bump golang.org/x/tools from 0.27.0 to 0.28.0 #13848

Job	Run time
Tests (mysql:5.6, mongo:4.2, postgres:14, percona/pmm-server:2.0.0)	6m 20s
Tests (mysql:5.7, mongo:4.4, postgres:15, percona/pmm-server:2.0.1)	6m 27s
Tests (mysql:8.0, mongo:4.4, postgres:16, percona/pmm-server:2.1.0)	6m 23s
Tests (mysql:8.0, mongo:4.4, postgres:17rc1, percona/pmm-server:2.2.0)	6m 23s
Tests (percona:5.6, percona/percona-server-mongodb:4.2, perconalab/percona-distribution-postgresq...	6m 42s
Tests (percona:5.7, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	6m 48s
Tests (percona:8.0, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	6m 49s
Tests (mariadb:10.2, mongo:4.4, postgres:12, perconalab/pmm-server:dev-latest)	6m 32s
Tests (mariadb:10.3, percona/percona-server-mongodb:4.4, postgres:13, perconalab/pmm-server:dev-l...	6m 40s
Tests (mariadb:10.4, postgres:14, perconalab/pmm-server:dev-latest)	6m 33s
	1h 5m 37s

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