In order to run the tests we need to increase the max pool size. Only
having 4 connections in the pool is not enough and all the tests using a
transaction are failing with a tiemout error.
We have the same problem running locally so the same value is added to
the postgresql environment file
We had lot of problems with the previous env.d system.
Users were often confused by the need to change
the env.d files manually, leading to issues
when using the project locally.
This commit introduces a new system that uses
.env.local files, which are automatically created
and can be modified by users without affecting
the original env.d files. This should simplify
the development process and reduce confusion by
removing the need to manually edit env.d files.
Manuel Raynaud