PMM-14527 Ability to have aurora specific queries.

[JiriCtvrtka]

https://jira.percona.com/browse/PMM-14527

PMM PR: percona/postgres_exporter#373

[JNKPercona]

Server docker: perconalab/pmm-server-fb:PR-4233-0b6b329
Client docker: perconalab/pmm-client-fb:PR-4233-0b6b329
Watchtower docker: perconalab/pmm-watchtower-fb:PR-4233-0b6b329
Client tarball: https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm-client/pmm-client-PR-4233-0b6b329.tar.gz
Staging instance: https://pmm.cd.percona.com/job/pmm3-aws-staging-start/parambuild/?DOCKER_VERSION=perconalab/pmm-server-fb:PR-4233-0b6b329&CLIENT_VERSION=https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm-client/pmm-client-PR-4233-0b6b329.tar.gz

[JNKPercona]

API tests have succeded: https://pmm.cd.percona.com/job/pmm3-api-tests/5351/

[JNKPercona]

Looks like there are outdated source branches.
Please update them and restart the job
percona/postgres_exporter#373

[JNKPercona]

Server docker: perconalab/pmm-server-fb:PR-4233-45bc28f
Client docker: perconalab/pmm-client-fb:PR-4233-45bc28f
Watchtower docker: perconalab/pmm-watchtower-fb:PR-4233-45bc28f
Client tarball: https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm-client/pmm-client-PR-4233-45bc28f.tar.gz
Staging instance: https://pmm.cd.percona.com/job/pmm3-aws-staging-start/parambuild/?DOCKER_VERSION=perconalab/pmm-server-fb:PR-4233-45bc28f&CLIENT_VERSION=https://s3.us-east-2.amazonaws.com/pmm-build-cache/PR-BUILDS/pmm-client/pmm-client-PR-4233-45bc28f.tar.gz

[JNKPercona]

API tests have failed: https://pmm.cd.percona.com/job/pmm3-api-tests/5400/