Fix mend failures (#223)

* Fix mend failures

* Update mend schedule to weekly

Author: feenr

.github/workflows/mend-scan.yml

@@ -7,7 +7,7 @@ on:
    branches:
    - 'master'
   schedule:
-   - cron:  '0 0 * * *' 
+   - cron:  '0 0 * * 1' 
 jobs:
   mendscan:
     env:
@@ -40,13 +40,13 @@ jobs:
           java -jar wss-unified-agent.jar
         fi
     - name: 'Upload WhiteSource folder'
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: Mend
         path: whitesource
         retention-days: 14
     - name: 'Upload Mend folder if failure'
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       if: failure()
       with:
         name: Mend