Update workflows 5

Author: kdafriend

.github/workflows/build.yml

@@ -186,7 +186,11 @@ jobs:
           pattern: release-arch-*
           merge-multiple: true
 
-      - run: ls -R artifacts
+      - run: Compute Cheksums
+        shell: bash
+        run: |
+          cd artifacts
+          sha256sum * > SHA256SUMS
 
       - name: Upload artifact
         uses: actions/upload-artifact@v6