build(deps): bump actions/download-artifact in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v2...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/Test.yml

@@ -138,7 +138,7 @@ jobs:
           zlib1g
 
     - name: '📥 Download artifact: package'
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         name: ubtuntu${{ matrix.os }}.04-openFPGALoader
 
@@ -187,7 +187,7 @@ jobs:
     steps:
 
     - name: '📥 Download artifacts'
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         path: artifact