Update workflow

fix a typo in actions

Author: nensor

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
         format: json
 
     - name: Upload SBOM artifact
-      uses: action/upload-artifact@v2
+      uses: actions/upload-artifact@v2
       with:
         name: SBOM
         path: ./bom.json