fix(CI): bump artifact actions to latest

Author: Lockwarr

.github/workflows/nolus-core.yaml

@@ -213,7 +213,7 @@ jobs:
 
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
 
       - name: Get binary checksum
         run: |
@@ -224,7 +224,7 @@ jobs:
           echo $JSON > $METADATA_FILE
 
       - name: Upload metadata
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: metadata
           path: |