[deps]: Update actions/download-artifact action to v4 (#106)

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

.github/workflows/build.yml

@@ -98,7 +98,7 @@ jobs:
         run: echo "name=${_AZ_REGISTRY}/${_PROJECT_NAME}:${IMAGE_TAG}" >> $GITHUB_OUTPUT
 
       - name: Get build artifact
-        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        uses: actions/download-artifact@7a1cd3216ca9260cd8022db641d960b1db4d1be4 # v4.0.0
         with:
           name: KeyConnector.zip