Merge pull request #538 from microsoft/dependabot/github_actions/dot-github/workflows/actions/download-artifact-4.1.7

Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows

Author: derrickstolee

.github/workflows/build-signed-deb.yml

@@ -60,7 +60,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: 'Download Unsigned Packages'
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         name: DebianUnsigned
         path: tosign