[BUG] Installer does not work with postgres

[bit]

Describe the bug

selecting postgres as database the installer fails to connect to db.
The database input does not let me specify the port, selecting postgres the installer still tries to use the mysql port from .env (DB_PORT). Manually changing that to postgres port first the instalaler works but does not change DB_CONNECTION to pgsql and port is reset to mysql port. Manually editing that after running the installer the system seams to work okay.

To Reproduce
Steps to reproduce the behavior:

1. Follow installation instructions from https://www.attendize.com/getting_started.html#manual-installation
2. open /install
3. Select Postgres
4. click on test database connection
5. manually edit DB_PORT
6. click on test database connection
7. run install
8. 500 erro
9. change DB_PORT and DB_CONNECTION again
10. site works

Expected behavior

Database details are correct and connection should wokr

Version of Attendize you are using

• Master branch

Where you are running Attendize

• in VPS

What version or Operating System are you using on the above server

• Debian 11

What version of PHP you are using on the above server

• PHP 7.4.33

What web server are you using Attendize with

• Nginx

[bit]

DB_TYPE=pgsql is written to .env instead of DB_CONNECTION=pgsql