Add dmops-files-tools-docker-image CI workflow

[eachristgr]

This PR updates the Docker image CI workflow to support builds for both file_invalidation_tool and generic-decompression-check using job-level conditions to route builds.

Triggers

• Automated Tag Pushes: Triggers automatically when tags matching fileinvalidation-* or fileintegrity-* are pushed. Each job filters on the specific tag prefix, running only the target image build.
• Manual Dispatch (workflow_dispatch): Enables manual execution directly from the GitHub Actions UI tab.

Manual Menu Options

• Tool Dropdown: Provides a choice menu to build file-invalidation, file-integrity or both simultaneously.
• Tag Versioning Input: Requires a custom tag version string to be explicitly provided (e.g., 1.0.0) in order for the CI to run.

[juanpablosalas]

This PR generalizes the CI workflow to include new changes in the file integrity checker image. I added some comments for minor changes but once these are resolved LGTM