PMM-12989 fix arbiter error logs (FB)

[idoqo]

https://jira.percona.com/browse/PMM-12989

• Links to relevant pull requests

[JNKPercona]

server docker - perconalab/pmm-server-fb:PR-3590-8b14f61
client docker - perconalab/pmm-client-fb:PR-3590-8b14f61
client - https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm2-client/pmm2-client-PR-3590-8b14f61.tar.gz
Create Staging Instance: https://pmm.cd.percona.com/job/aws-staging-start/parambuild/?DOCKER_VERSION=perconalab/pmm-server-fb:PR-3590-8b14f61&CLIENT_VERSION=https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm2-client/pmm2-client-PR-3590-8b14f61.tar.gz

[JNKPercona]

API tests have failed, Please check: API: https://pmm.cd.percona.com/job/pmm2-api-tests/15083/

[JNKPercona]

server docker - perconalab/pmm-server-fb:PR-3590-6874a0e
client docker - perconalab/pmm-client-fb:PR-3590-6874a0e
client - https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm2-client/pmm2-client-PR-3590-6874a0e.tar.gz
Create Staging Instance: https://pmm.cd.percona.com/job/aws-staging-start/parambuild/?DOCKER_VERSION=perconalab/pmm-server-fb:PR-3590-6874a0e&CLIENT_VERSION=https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm2-client/pmm2-client-PR-3590-6874a0e.tar.gz

[JNKPercona]

API tests have failed, Please check: API: https://pmm.cd.percona.com/job/pmm2-api-tests/15190/