Update actions/upload-artifact digest to 6f51ac0 (#383)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -73,15 +73,15 @@ jobs:
           cake-version: 1.3.0
       # currently, Cake.Recipe does not upload artifacts when run on gh-actions
       - name: Upload Issues
-        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
+        uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4
         with:
           if-no-files-found: warn
           name: ${{ matrix.os }} Issues
           path: |
             BuildArtifacts/report.html
             BuildArtifacts/**/coverlet/*.xml
       - name: Upload Packages
-        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
+        uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4
         if: runner.os == 'Windows'
         with:
           if-no-files-found: warn