Prevent users from executing pg_dump against tables

Hello all,

In our production db infrastructure, we have one read_only role which has
read privileges against all tables in schema A.

We are planning to grant this role to some developers for viewing the data,
but also I want to limit the users from executing statements like copy or
using pg_dump. Main reason being I don't want the data to be copied from
the database to their local machines.

I tried by implementing triggers, but was not able to figure out a way to
restrict the pg_dump and allow only select statements.

Postgresql version - 12
Ec2 based postgres database

Is there a way to implement this? Please advise.

Thanks & Regards,
Rajamohan.J
Devops Cloud Architect
Email:garajamohan(at)gmail(dot)com