fix plugin build

Signed-off-by: Markus Blaschke <[email protected]>

Author: mblaschke

.github/workflows/release-assets.yaml

@@ -66,6 +66,7 @@ jobs:
 
       - name: Build plugins
         run: |
+          mkdir -p ./release-assets/
           make plugins
 
       - name: Publish azure-tpl-cli