[BUG] Empty "Scanned Files" and "OpenSSF Scorecard" sections if no issues found

[fabasoad]

Describe the bug
There is a table with headers only and empty "Scanned Files" section in Action Summary view in case no vulnerabilities and OpenSSF Scorecard issues found.

To Reproduce
Steps to reproduce the behavior:

1. Run the action on the project with no issues.
2. Go to Actions > Select run
3. Scroll to the summary view at the bottom

Expected behavior

Dependency Review
✅ No vulnerabilities or OpenSSF Scorecard issues found.

* without "Scanned Files" and "OpenSSF Scorecard" empty sections

Screenshots

Action version
Latest at the moment - v4.5.0

Examples
None.

Additional context
This is not a critical neither a blocking issue, but:

1. It is a little bit confusing to see nothing in "Scanned Files". The first thought is - "Maybe nothing were scanned and that's why it reports that no vulnerabilities are found? How can I make it to perform the actual scan?" 🤔 To avoid confusion either there should be a list of scanned files despite of the result, or simply remove "Scanned Files" section as well as remove "OpenSSF Scorecard" section for the same reason - it is empty and confusing that might be nothing was checked.
2. Visually it is prettier to see a single sentence that nothing was found without a noise as empty tables and empty sections.