Enhance Docker action to accept build arguments and update documentation

[javidahmed64592]

This pull request updates the documentation for GitHub workflows and reusable actions, clarifying usage and simplifying input requirements. It also introduces a new build-args input to the Docker build action, allowing for greater flexibility when starting services. The most important changes are grouped below.

Enhancements to Docker build action:

• Added a new build-args input to the build-start-services/action.yml file, enabling custom build arguments to be passed to Docker Compose when starting services.

Documentation improvements and input simplification:

• Revised docs/WORKFLOWS.md to clarify the scope of the document, distinguishing between shared actions and project-specific Docker workflows.
• Updated action documentation in docs/WORKFLOWS.md to remove unnecessary input parameters, describe steps more clearly, and show how context/environment variables are used instead of explicit inputs. [1] [2] [3] [4] [5]