Workflow dispatch now always rebuilds

[mczyz-antmicro]

Previously, the workflow_dispatch event trigger would check for updates, regardless of the input settings. Also, the debug-artifacts option was unused. In this PR I propose to remove these 2 inputs and define the following behavior of the pipeline for workflow_dispatch events:

• Remote repositories are not checked for updates
• Indexing and deployment is always executed
• Repository information is obtained from current deps.json

This changes enables manual re-triggering of the build and deployment in a reproducible way