[bug] Includes parameter not working

[lbonini94]

Describe the bug
The includes parameter is not loading the files properly

To Reproduce
Steps to reproduce the behavior:

1. Having the following folder structure

├── conf
│   ├── database
│   │   └── postgre.toml
│   └── settings.toml
└── config.py

2. Having the following config file

# config.py
from dynaconf import Dynaconf

settings = Dynaconf(
    envvar_prefix="DYNACONF",
    settings_files=['conf/settings.toml',
                    'conf/.secrets.toml'],
    includes=['conf/**/*.toml']
)

3. Run dynaconf -i config.settings list and the parameters inside conf/database/postgre.toml are not showed.

Working in main environment 
A<int> 3
B<int> 2

4. Having the folling .toml files

# conf/settings.toml
a=3
b=2

# conf/database/postgre.toml
included_host="0.0.0.0"

Expected behavior
Output:

Working in main environment 
A<int> 3
B<int> 2
INCLUDED_HOST<str> "0.0.0.0"

Environment (please complete the following information):

• OS: OS: Pop!_OS 22.04 LTS x86_64
• Dynaconf Version 3.1.9

[rochacbruno]

Not a bug, I added note to the docs and a test + explanation here: #796