Feature Request: Support for .yaml Extension for Docker Compose Files

[sbaerlocher]

Since the official acceptance of both .yml and .yaml extensions by Docker Compose exists, I propose implementing support for .yaml extensions for Docker Compose files in the DDE project. This extension would enable compatibility with a wider range of Docker Compose configurations and allow users to use their preferred file extension without the need to adjust file names for compatibility with the DDE project. Incorporating this change could increase flexibility for developers and simplify integration into existing workflows.