ci: Add dependabot for requirements

[georgebisbas]

Add dependabot for handling future python releases on dependencies

[gemini-code-assist]

Code Review

This pull request introduces a Dependabot configuration for automated dependency updates and adds a new CI requirements file. The review feedback correctly identifies that the Dependabot pip ecosystem configuration points to the root directory, which will miss the new requirements/ci.txt file located in the requirements subdirectory; a change to the directory path is recommended to ensure proper tracking.

[gemini-code-assist]

The pip package-ecosystem is configured to look in the root directory (/), but the new requirements file requirements/ci.txt is located in the requirements subdirectory. To ensure Dependabot can find and update the dependencies in requirements/ci.txt, the directory should be set to /requirements.

Note that this change will cause Dependabot to stop scanning for dependencies in pyproject.toml at the root level. If you intend to update dependencies in both files, you will need to create a second, separate entry for the pip package-ecosystem with directory: "/".

    directory: "/requirements"

[georgebisbas]

fixed