Bump github.com/bufbuild/buf from 1.46.0 to 1.47.0 in /tools #13573

Job	Run time
Tests (mysql:5.6, mongo:4.2, postgres:14, percona/pmm-server:2.0.0)	3m 26s
Tests (mysql:5.7, mongo:4.4, postgres:15, percona/pmm-server:2.0.1)	7m 24s
Tests (mysql:8.0, mongo:4.4, postgres:16, percona/pmm-server:2.1.0)	3m 42s
Tests (mysql:8.0, mongo:4.4, postgres:17rc1, percona/pmm-server:2.2.0)	3m 27s
Tests (percona:5.6, percona/percona-server-mongodb:4.2, perconalab/percona-distribution-postgresq...	4m 4s
Tests (percona:5.7, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	4m 8s
Tests (percona:8.0, percona/percona-server-mongodb:4.4, perconalab/percona-distribution-postgresq...	3m 49s
Tests (mariadb:10.2, mongo:4.4, postgres:12, perconalab/pmm-server:dev-latest)	3m 37s
Tests (mariadb:10.3, percona/percona-server-mongodb:4.4, postgres:13, perconalab/pmm-server:dev-l...	3m 30s
Tests (mariadb:10.4, postgres:14, perconalab/pmm-server:dev-latest)	3m 35s
	40m 42s

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