test(mssql): add support for running tests against ms sql server

[DaveHint]

I'd like to start to use spatial data with doctrine in one of my projects I'm working on, but unfortunately it uses Microsoft SQL Server. It would be great if doctrine-spatial could support it.

Therefore, I'd like to contribute a potential starting point for MSSQL support:

• scaffold phpunit test suites for MSSQL Server
• add docker compose services for MSSQL Server
• create the test database main when MSSQL Server starts
• install PDO drivers for MSSQL Server in php8 service
• configure SqlServerPlatform as supported platform in OrmTestCase
• add additional database driver options when building the connection parameters to trust the sql server's self signed certificate
• add test commands to composer.json

Feedback is welcome

[Alexandre-T]

Many thanks for your pull request! I'm really excited about this contribution. In my opinion, MSSQL Server is an excellent database engine, and I'm thrilled about the prospect of extending doctrine-spatial to support it.

I'll review your code as soon as possible. I'm on vacation next week, so I'm not sure how much time I'll have to work on it, but I'll get back to you as soon as I can.

[Alexandre-T]

Here's my initial feedback (though it's incomplete).

The tests are failing due to a minor issue. The phpunit.*.xml files located in the docker directory are intended for developer assistance. However, the CI process utilizes the phpunit.*.xml files within the .github directory. To resolve this, you'll need to duplicate the files from the docker directory to the .github directory and update them to include the necessary host, port, user and password credentials. (here is the line of the CI)

Additionally, the CI configuration defined in the.github/workflow/full.yaml file should be updated to set up three separate MS-SQL containers (three services), each representing a different version.

edit: I just find this action to help you to create the services: https://github.com/marketplace/actions/mssql-suite

I am grateful for your valuable pull request! Thank you so much!